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Finding the Fourth Proportional to 104,640.39, 156,788.06 and 60,304.41

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Solution

The fourth proportional to 104,640.39, 156,788.06 and 60,304.41 is: 90,357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,640.39 : 156,788.06 = 60,304.41 : x
  2. Step 2: Convert to fraction form
    104,640.39/156,788.06 = 60,304.41/x
  3. Step 3: Cross multiply
    104,640.39x = 156,788.06 × 60,304.41
  4. Step 4: Simplify right side
    104,640.39x = 9,455,011,151.82
  5. Step 5: Solve for x
    x = 9,455,011,151.82/104,640.39
  6. Step 6: Final answer
    x = 90,357.19

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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.