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Finding the Fourth Proportional to 125,689.76, 188,541.62 and 41,446.52

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Solution

The fourth proportional to 125,689.76, 188,541.62 and 41,446.52 is: 62,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,689.76 : 188,541.62 = 41,446.52 : x
  2. Step 2: Convert to fraction form
    125,689.76/188,541.62 = 41,446.52/x
  3. Step 3: Cross multiply
    125,689.76x = 188,541.62 × 41,446.52
  4. Step 4: Simplify right side
    125,689.76x = 7,814,394,024.16
  5. Step 5: Solve for x
    x = 7,814,394,024.16/125,689.76
  6. Step 6: Final answer
    x = 62,172.08

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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.