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Finding the Fourth Proportional to 178,702.56, 246,615.28 and 103,251.04

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Solution

The fourth proportional to 178,702.56, 246,615.28 and 103,251.04 is: 142,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,702.56 : 246,615.28 = 103,251.04 : x
  2. Step 2: Convert to fraction form
    178,702.56/246,615.28 = 103,251.04/x
  3. Step 3: Cross multiply
    178,702.56x = 246,615.28 × 103,251.04
  4. Step 4: Simplify right side
    178,702.56x = 25,463,284,139.89
  5. Step 5: Solve for x
    x = 25,463,284,139.89/178,702.56
  6. Step 6: Final answer
    x = 142,489.76

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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.