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Finding the Fourth Proportional to 238,773.74, 329,531.90 and 136,812.72

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Solution

The fourth proportional to 238,773.74, 329,531.90 and 136,812.72 is: 188,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,773.74 : 329,531.90 = 136,812.72 : x
  2. Step 2: Convert to fraction form
    238,773.74/329,531.90 = 136,812.72/x
  3. Step 3: Cross multiply
    238,773.74x = 329,531.90 × 136,812.72
  4. Step 4: Simplify right side
    238,773.74x = 45,084,155,565.77
  5. Step 5: Solve for x
    x = 45,084,155,565.77/238,773.74
  6. Step 6: Final answer
    x = 188,815.38

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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.