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Finding the Fourth Proportional to 360,717.05, 541,070.11 and 124,061.78

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Solution

The fourth proportional to 360,717.05, 541,070.11 and 124,061.78 is: 186,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,717.05 : 541,070.11 = 124,061.78 : x
  2. Step 2: Convert to fraction form
    360,717.05/541,070.11 = 124,061.78/x
  3. Step 3: Cross multiply
    360,717.05x = 541,070.11 × 124,061.78
  4. Step 4: Simplify right side
    360,717.05x = 67,126,122,459.15
  5. Step 5: Solve for x
    x = 67,126,122,459.15/360,717.05
  6. Step 6: Final answer
    x = 186,090.79

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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.