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Finding the Fourth Proportional to 124,358.31, 186,381.39 and 53,197.41

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Solution

The fourth proportional to 124,358.31, 186,381.39 and 53,197.41 is: 79,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,358.31 : 186,381.39 = 53,197.41 : x
  2. Step 2: Convert to fraction form
    124,358.31/186,381.39 = 53,197.41/x
  3. Step 3: Cross multiply
    124,358.31x = 186,381.39 × 53,197.41
  4. Step 4: Simplify right side
    124,358.31x = 9,915,007,220.20
  5. Step 5: Solve for x
    x = 9,915,007,220.20/124,358.31
  6. Step 6: Final answer
    x = 79,729.35

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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.