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Finding the Fourth Proportional to 191,753.76, 264,496.68 and 127,221.60

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Solution

The fourth proportional to 191,753.76, 264,496.68 and 127,221.60 is: 175,483.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,753.76 : 264,496.68 = 127,221.60 : x
  2. Step 2: Convert to fraction form
    191,753.76/264,496.68 = 127,221.60/x
  3. Step 3: Cross multiply
    191,753.76x = 264,496.68 × 127,221.60
  4. Step 4: Simplify right side
    191,753.76x = 33,649,690,824.29
  5. Step 5: Solve for x
    x = 33,649,690,824.29/191,753.76
  6. Step 6: Final answer
    x = 175,483.86

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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.