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Finding the Fourth Proportional to 475,174.22, 712,882.08 and 138,214.87

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Solution

The fourth proportional to 475,174.22, 712,882.08 and 138,214.87 is: 207,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,174.22 : 712,882.08 = 138,214.87 : x
  2. Step 2: Convert to fraction form
    475,174.22/712,882.08 = 138,214.87/x
  3. Step 3: Cross multiply
    475,174.22x = 712,882.08 × 138,214.87
  4. Step 4: Simplify right side
    475,174.22x = 98,530,902,230.32
  5. Step 5: Solve for x
    x = 98,530,902,230.32/475,174.22
  6. Step 6: Final answer
    x = 207,357.43

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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.