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Finding the Fourth Proportional to 124,758.40, 187,139.20 and 41,652.40

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Solution

The fourth proportional to 124,758.40, 187,139.20 and 41,652.40 is: 62,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,758.40 : 187,139.20 = 41,652.40 : x
  2. Step 2: Convert to fraction form
    124,758.40/187,139.20 = 41,652.40/x
  3. Step 3: Cross multiply
    124,758.40x = 187,139.20 × 41,652.40
  4. Step 4: Simplify right side
    124,758.40x = 7,794,796,814.08
  5. Step 5: Solve for x
    x = 7,794,796,814.08/124,758.40
  6. Step 6: Final answer
    x = 62,479.13

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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.