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Finding the Fourth Proportional to 124,001.71, 185,944.23 and 86,604.01

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Solution

The fourth proportional to 124,001.71, 185,944.23 and 86,604.01 is: 129,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,001.71 : 185,944.23 = 86,604.01 : x
  2. Step 2: Convert to fraction form
    124,001.71/185,944.23 = 86,604.01/x
  3. Step 3: Cross multiply
    124,001.71x = 185,944.23 × 86,604.01
  4. Step 4: Simplify right side
    124,001.71x = 16,103,515,489.50
  5. Step 5: Solve for x
    x = 16,103,515,489.50/124,001.71
  6. Step 6: Final answer
    x = 129,865.27

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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.