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Finding the Fourth Proportional to 73,104.60, 109,581.30 and 39,754.20

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Solution

The fourth proportional to 73,104.60, 109,581.30 and 39,754.20 is: 59,590.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,104.60 : 109,581.30 = 39,754.20 : x
  2. Step 2: Convert to fraction form
    73,104.60/109,581.30 = 39,754.20/x
  3. Step 3: Cross multiply
    73,104.60x = 109,581.30 × 39,754.20
  4. Step 4: Simplify right side
    73,104.60x = 4,356,316,916.46
  5. Step 5: Solve for x
    x = 4,356,316,916.46/73,104.60
  6. Step 6: Final answer
    x = 59,590.19

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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.