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Finding the Fourth Proportional to 71,177.55, 106,713.14 and 43,090.84

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Solution

The fourth proportional to 71,177.55, 106,713.14 and 43,090.84 is: 64,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,177.55 : 106,713.14 = 43,090.84 : x
  2. Step 2: Convert to fraction form
    71,177.55/106,713.14 = 43,090.84/x
  3. Step 3: Cross multiply
    71,177.55x = 106,713.14 × 43,090.84
  4. Step 4: Simplify right side
    71,177.55x = 4,598,359,001.96
  5. Step 5: Solve for x
    x = 4,598,359,001.96/71,177.55
  6. Step 6: Final answer
    x = 64,604.06

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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.