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Finding the Fourth Proportional to 82,944,115.60, 124,416,173.40 and 82,440,230.80

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Solution

The fourth proportional to 82,944,115.60, 124,416,173.40 and 82,440,230.80 is: 123,660,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,944,115.60 : 124,416,173.40 = 82,440,230.80 : x
  2. Step 2: Convert to fraction form
    82,944,115.60/124,416,173.40 = 82,440,230.80/x
  3. Step 3: Cross multiply
    82,944,115.60x = 124,416,173.40 × 82,440,230.80
  4. Step 4: Simplify right side
    82,944,115.60x = 10,256,898,050,348,820
  5. Step 5: Solve for x
    x = 10,256,898,050,348,820/82,944,115.60
  6. Step 6: Final answer
    x = 123,660,346.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.