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Finding the Fourth Proportional to 238,161.88, 328,663.87 and 141,385.15

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Solution

The fourth proportional to 238,161.88, 328,663.87 and 141,385.15 is: 195,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,161.88 : 328,663.87 = 141,385.15 : x
  2. Step 2: Convert to fraction form
    238,161.88/328,663.87 = 141,385.15/x
  3. Step 3: Cross multiply
    238,161.88x = 328,663.87 × 141,385.15
  4. Step 4: Simplify right side
    238,161.88x = 46,468,188,209.29
  5. Step 5: Solve for x
    x = 46,468,188,209.29/238,161.88
  6. Step 6: Final answer
    x = 195,111.78

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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.