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Finding the Fourth Proportional to 157,652.48, 217,190.76 and 109,819.28

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Solution

The fourth proportional to 157,652.48, 217,190.76 and 109,819.28 is: 151,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,652.48 : 217,190.76 = 109,819.28 : x
  2. Step 2: Convert to fraction form
    157,652.48/217,190.76 = 109,819.28/x
  3. Step 3: Cross multiply
    157,652.48x = 217,190.76 × 109,819.28
  4. Step 4: Simplify right side
    157,652.48x = 23,851,732,885.85
  5. Step 5: Solve for x
    x = 23,851,732,885.85/157,652.48
  6. Step 6: Final answer
    x = 151,293.10

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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.