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Finding the Fourth Proportional to 82,944,465.80, 124,416,698.70 and 65,812,382.60

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Solution

The fourth proportional to 82,944,465.80, 124,416,698.70 and 65,812,382.60 is: 98,718,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,944,465.80 : 124,416,698.70 = 65,812,382.60 : x
  2. Step 2: Convert to fraction form
    82,944,465.80/124,416,698.70 = 65,812,382.60/x
  3. Step 3: Cross multiply
    82,944,465.80x = 124,416,698.70 × 65,812,382.60
  4. Step 4: Simplify right side
    82,944,465.80x = 8,188,159,376,673,323
  5. Step 5: Solve for x
    x = 8,188,159,376,673,323/82,944,465.80
  6. Step 6: Final answer
    x = 98,718,573.90

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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.