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Finding the Fourth Proportional to 124,374.99, 171,665.19 and 79,044.15

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Solution

The fourth proportional to 124,374.99, 171,665.19 and 79,044.15 is: 109,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,374.99 : 171,665.19 = 79,044.15 : x
  2. Step 2: Convert to fraction form
    124,374.99/171,665.19 = 79,044.15/x
  3. Step 3: Cross multiply
    124,374.99x = 171,665.19 × 79,044.15
  4. Step 4: Simplify right side
    124,374.99x = 13,569,129,028.14
  5. Step 5: Solve for x
    x = 13,569,129,028.14/124,374.99
  6. Step 6: Final answer
    x = 109,098.53

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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.