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Finding the Fourth Proportional to 541,937.80, 812,932.30 and 168,222.60

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Solution

The fourth proportional to 541,937.80, 812,932.30 and 168,222.60 is: 252,341.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,937.80 : 812,932.30 = 168,222.60 : x
  2. Step 2: Convert to fraction form
    541,937.80/812,932.30 = 168,222.60/x
  3. Step 3: Cross multiply
    541,937.80x = 812,932.30 × 168,222.60
  4. Step 4: Simplify right side
    541,937.80x = 136,753,585,129.98
  5. Step 5: Solve for x
    x = 136,753,585,129.98/541,937.80
  6. Step 6: Final answer
    x = 252,341.85

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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.