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Finding the Fourth Proportional to 226,711.60, 340,056.60 and 76,937.20

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Solution

The fourth proportional to 226,711.60, 340,056.60 and 76,937.20 is: 115,402.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,711.60 : 340,056.60 = 76,937.20 : x
  2. Step 2: Convert to fraction form
    226,711.60/340,056.60 = 76,937.20/x
  3. Step 3: Cross multiply
    226,711.60x = 340,056.60 × 76,937.20
  4. Step 4: Simplify right side
    226,711.60x = 26,163,002,645.52
  5. Step 5: Solve for x
    x = 26,163,002,645.52/226,711.60
  6. Step 6: Final answer
    x = 115,402.13

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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.