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Finding the Fourth Proportional to 125,169.34, 187,765.56 and 40,929.94

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Solution

The fourth proportional to 125,169.34, 187,765.56 and 40,929.94 is: 61,398.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,169.34 : 187,765.56 = 40,929.94 : x
  2. Step 2: Convert to fraction form
    125,169.34/187,765.56 = 40,929.94/x
  3. Step 3: Cross multiply
    125,169.34x = 187,765.56 × 40,929.94
  4. Step 4: Simplify right side
    125,169.34x = 7,685,233,104.87
  5. Step 5: Solve for x
    x = 7,685,233,104.87/125,169.34
  6. Step 6: Final answer
    x = 61,398.69

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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.