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Finding the Fourth Proportional to 144,627.20, 216,843.60 and 65,700.80

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Solution

The fourth proportional to 144,627.20, 216,843.60 and 65,700.80 is: 98,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,627.20 : 216,843.60 = 65,700.80 : x
  2. Step 2: Convert to fraction form
    144,627.20/216,843.60 = 65,700.80/x
  3. Step 3: Cross multiply
    144,627.20x = 216,843.60 × 65,700.80
  4. Step 4: Simplify right side
    144,627.20x = 14,246,797,994.88
  5. Step 5: Solve for x
    x = 14,246,797,994.88/144,627.20
  6. Step 6: Final answer
    x = 98,507.04

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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.