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Finding the Fourth Proportional to 74,062.73, 102,204.51 and 42,229.73

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Solution

The fourth proportional to 74,062.73, 102,204.51 and 42,229.73 is: 58,275.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062.73 : 102,204.51 = 42,229.73 : x
  2. Step 2: Convert to fraction form
    74,062.73/102,204.51 = 42,229.73/x
  3. Step 3: Cross multiply
    74,062.73x = 102,204.51 × 42,229.73
  4. Step 4: Simplify right side
    74,062.73x = 4,316,068,862.08
  5. Step 5: Solve for x
    x = 4,316,068,862.08/74,062.73
  6. Step 6: Final answer
    x = 58,275.85

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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.