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Finding the Fourth Proportional to 252,948.69, 349,073.75 and 138,232.17

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Solution

The fourth proportional to 252,948.69, 349,073.75 and 138,232.17 is: 190,762.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,948.69 : 349,073.75 = 138,232.17 : x
  2. Step 2: Convert to fraction form
    252,948.69/349,073.75 = 138,232.17/x
  3. Step 3: Cross multiply
    252,948.69x = 349,073.75 × 138,232.17
  4. Step 4: Simplify right side
    252,948.69x = 48,253,221,952.54
  5. Step 5: Solve for x
    x = 48,253,221,952.54/252,948.69
  6. Step 6: Final answer
    x = 190,762.89

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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.