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Finding the Fourth Proportional to 74,417.60, 102,694.56 and 42,593.60

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Solution

The fourth proportional to 74,417.60, 102,694.56 and 42,593.60 is: 58,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,417.60 : 102,694.56 = 42,593.60 : x
  2. Step 2: Convert to fraction form
    74,417.60/102,694.56 = 42,593.60/x
  3. Step 3: Cross multiply
    74,417.60x = 102,694.56 × 42,593.60
  4. Step 4: Simplify right side
    74,417.60x = 4,374,131,010.82
  5. Step 5: Solve for x
    x = 4,374,131,010.82/74,417.60
  6. Step 6: Final answer
    x = 58,778.18

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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.