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Finding the Fourth Proportional to 150,064.65, 207,107.08 and 86,414.85

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Solution

The fourth proportional to 150,064.65, 207,107.08 and 86,414.85 is: 119,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,064.65 : 207,107.08 = 86,414.85 : x
  2. Step 2: Convert to fraction form
    150,064.65/207,107.08 = 86,414.85/x
  3. Step 3: Cross multiply
    150,064.65x = 207,107.08 × 86,414.85
  4. Step 4: Simplify right side
    150,064.65x = 17,897,127,036.10
  5. Step 5: Solve for x
    x = 17,897,127,036.10/150,064.65
  6. Step 6: Final answer
    x = 119,262.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.