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Finding the Fourth Proportional to 443,397.54, 665,194.68 and 127,829.82

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Solution

The fourth proportional to 443,397.54, 665,194.68 and 127,829.82 is: 191,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,397.54 : 665,194.68 = 127,829.82 : x
  2. Step 2: Convert to fraction form
    443,397.54/665,194.68 = 127,829.82/x
  3. Step 3: Cross multiply
    443,397.54x = 665,194.68 × 127,829.82
  4. Step 4: Simplify right side
    443,397.54x = 85,031,716,209.36
  5. Step 5: Solve for x
    x = 85,031,716,209.36/443,397.54
  6. Step 6: Final answer
    x = 191,773.09

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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.