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Finding the Fourth Proportional to 123,160.96, 169,962.17 and 66,572.34

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Solution

The fourth proportional to 123,160.96, 169,962.17 and 66,572.34 is: 91,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,160.96 : 169,962.17 = 66,572.34 : x
  2. Step 2: Convert to fraction form
    123,160.96/169,962.17 = 66,572.34/x
  3. Step 3: Cross multiply
    123,160.96x = 169,962.17 × 66,572.34
  4. Step 4: Simplify right side
    123,160.96x = 11,314,779,368.38
  5. Step 5: Solve for x
    x = 11,314,779,368.38/123,160.96
  6. Step 6: Final answer
    x = 91,869.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.