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Finding the Fourth Proportional to 361,174.80, 541,263.96 and 272,330.66

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Solution

The fourth proportional to 361,174.80, 541,263.96 and 272,330.66 is: 408,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,174.80 : 541,263.96 = 272,330.66 : x
  2. Step 2: Convert to fraction form
    361,174.80/541,263.96 = 272,330.66/x
  3. Step 3: Cross multiply
    361,174.80x = 541,263.96 × 272,330.66
  4. Step 4: Simplify right side
    361,174.80x = 147,402,771,461.01
  5. Step 5: Solve for x
    x = 147,402,771,461.01/361,174.80
  6. Step 6: Final answer
    x = 408,120.31

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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.