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Finding the Fourth Proportional to 253,522.56, 349,865.28 and 138,799.29

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Solution

The fourth proportional to 253,522.56, 349,865.28 and 138,799.29 is: 191,545.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,522.56 : 349,865.28 = 138,799.29 : x
  2. Step 2: Convert to fraction form
    253,522.56/349,865.28 = 138,799.29/x
  3. Step 3: Cross multiply
    253,522.56x = 349,865.28 × 138,799.29
  4. Step 4: Simplify right side
    253,522.56x = 48,561,052,459.65
  5. Step 5: Solve for x
    x = 48,561,052,459.65/253,522.56
  6. Step 6: Final answer
    x = 191,545.29

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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.