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Finding the Fourth Proportional to 160,129.55, 240,221.96 and 65,411.17

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Solution

The fourth proportional to 160,129.55, 240,221.96 and 65,411.17 is: 98,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,129.55 : 240,221.96 = 65,411.17 : x
  2. Step 2: Convert to fraction form
    160,129.55/240,221.96 = 65,411.17/x
  3. Step 3: Cross multiply
    160,129.55x = 240,221.96 × 65,411.17
  4. Step 4: Simplify right side
    160,129.55x = 15,713,199,463.29
  5. Step 5: Solve for x
    x = 15,713,199,463.29/160,129.55
  6. Step 6: Final answer
    x = 98,128.04

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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.