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Finding the Fourth Proportional to 124,459.62, 186,514.47 and 54,191.58

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Solution

The fourth proportional to 124,459.62, 186,514.47 and 54,191.58 is: 81,211.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,459.62 : 186,514.47 = 54,191.58 : x
  2. Step 2: Convert to fraction form
    124,459.62/186,514.47 = 54,191.58/x
  3. Step 3: Cross multiply
    124,459.62x = 186,514.47 × 54,191.58
  4. Step 4: Simplify right side
    124,459.62x = 10,107,513,822.16
  5. Step 5: Solve for x
    x = 10,107,513,822.16/124,459.62
  6. Step 6: Final answer
    x = 81,211.19

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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.