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Finding the Fourth Proportional to 234,843.40, 352,005.90 and 129,737.80

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Solution

The fourth proportional to 234,843.40, 352,005.90 and 129,737.80 is: 194,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,843.40 : 352,005.90 = 129,737.80 : x
  2. Step 2: Convert to fraction form
    234,843.40/352,005.90 = 129,737.80/x
  3. Step 3: Cross multiply
    234,843.40x = 352,005.90 × 129,737.80
  4. Step 4: Simplify right side
    234,843.40x = 45,668,471,053.02
  5. Step 5: Solve for x
    x = 45,668,471,053.02/234,843.40
  6. Step 6: Final answer
    x = 194,463.51

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1.5x scale

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.