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Finding the Fourth Proportional to 64,042.72, 88,375.24 and 35,750.20

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Solution

The fourth proportional to 64,042.72, 88,375.24 and 35,750.20 is: 49,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,042.72 : 88,375.24 = 35,750.20 : x
  2. Step 2: Convert to fraction form
    64,042.72/88,375.24 = 35,750.20/x
  3. Step 3: Cross multiply
    64,042.72x = 88,375.24 × 35,750.20
  4. Step 4: Simplify right side
    64,042.72x = 3,159,432,505.05
  5. Step 5: Solve for x
    x = 3,159,432,505.05/64,042.72
  6. Step 6: Final answer
    x = 49,333.20

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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.