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Finding the Fourth Proportional to 234,710.48, 352,064.28 and 76,937.78

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Solution

The fourth proportional to 234,710.48, 352,064.28 and 76,937.78 is: 115,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,710.48 : 352,064.28 = 76,937.78 : x
  2. Step 2: Convert to fraction form
    234,710.48/352,064.28 = 76,937.78/x
  3. Step 3: Cross multiply
    234,710.48x = 352,064.28 × 76,937.78
  4. Step 4: Simplify right side
    234,710.48x = 27,087,044,120.50
  5. Step 5: Solve for x
    x = 27,087,044,120.50/234,710.48
  6. Step 6: Final answer
    x = 115,406.20

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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.