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Finding the Fourth Proportional to 124,512.90, 186,546.60 and 75,737.40

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Solution

The fourth proportional to 124,512.90, 186,546.60 and 75,737.40 is: 113,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,512.90 : 186,546.60 = 75,737.40 : x
  2. Step 2: Convert to fraction form
    124,512.90/186,546.60 = 75,737.40/x
  3. Step 3: Cross multiply
    124,512.90x = 186,546.60 × 75,737.40
  4. Step 4: Simplify right side
    124,512.90x = 14,128,554,462.84
  5. Step 5: Solve for x
    x = 14,128,554,462.84/124,512.90
  6. Step 6: Final answer
    x = 113,470.61

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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.