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Finding the Fourth Proportional to 113,045.92, 169,599.60 and 39,179.68

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Solution

The fourth proportional to 113,045.92, 169,599.60 and 39,179.68 is: 58,780.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,045.92 : 169,599.60 = 39,179.68 : x
  2. Step 2: Convert to fraction form
    113,045.92/169,599.60 = 39,179.68/x
  3. Step 3: Cross multiply
    113,045.92x = 169,599.60 × 39,179.68
  4. Step 4: Simplify right side
    113,045.92x = 6,644,858,056.13
  5. Step 5: Solve for x
    x = 6,644,858,056.13/113,045.92
  6. Step 6: Final answer
    x = 58,780.17

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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.