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Finding the Fourth Proportional to 443,397.56, 665,194.68 and 127,829.84

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Solution

The fourth proportional to 443,397.56, 665,194.68 and 127,829.84 is: 191,773.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,397.56 : 665,194.68 = 127,829.84 : x
  2. Step 2: Convert to fraction form
    443,397.56/665,194.68 = 127,829.84/x
  3. Step 3: Cross multiply
    443,397.56x = 665,194.68 × 127,829.84
  4. Step 4: Simplify right side
    443,397.56x = 85,031,729,513.25
  5. Step 5: Solve for x
    x = 85,031,729,513.25/443,397.56
  6. Step 6: Final answer
    x = 191,773.11

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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.