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Finding the Fourth Proportional to 123,073.35, 169,841.31 and 66,484.71

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Solution

The fourth proportional to 123,073.35, 169,841.31 and 66,484.71 is: 91,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,073.35 : 169,841.31 = 66,484.71 : x
  2. Step 2: Convert to fraction form
    123,073.35/169,841.31 = 66,484.71/x
  3. Step 3: Cross multiply
    123,073.35x = 169,841.31 × 66,484.71
  4. Step 4: Simplify right side
    123,073.35x = 11,291,850,241.37
  5. Step 5: Solve for x
    x = 11,291,850,241.37/123,073.35
  6. Step 6: Final answer
    x = 91,748.95

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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.