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Finding the Fourth Proportional to 159,243.55, 238,520.76 and 74,877.29

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Solution

The fourth proportional to 159,243.55, 238,520.76 and 74,877.29 is: 112,153.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,243.55 : 238,520.76 = 74,877.29 : x
  2. Step 2: Convert to fraction form
    159,243.55/238,520.76 = 74,877.29/x
  3. Step 3: Cross multiply
    159,243.55x = 238,520.76 × 74,877.29
  4. Step 4: Simplify right side
    159,243.55x = 17,859,788,117.54
  5. Step 5: Solve for x
    x = 17,859,788,117.54/159,243.55
  6. Step 6: Final answer
    x = 112,153.92

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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.