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Finding the Fourth Proportional to 151,762.60, 227,781.60 and 76,934.80

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Solution

The fourth proportional to 151,762.60, 227,781.60 and 76,934.80 is: 115,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,762.60 : 227,781.60 = 76,934.80 : x
  2. Step 2: Convert to fraction form
    151,762.60/227,781.60 = 76,934.80/x
  3. Step 3: Cross multiply
    151,762.60x = 227,781.60 × 76,934.80
  4. Step 4: Simplify right side
    151,762.60x = 17,524,331,839.68
  5. Step 5: Solve for x
    x = 17,524,331,839.68/151,762.60
  6. Step 6: Final answer
    x = 115,472.01

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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.