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Finding the Fourth Proportional to 454,314.80, 681,472.20 and 154,695.80

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Solution

The fourth proportional to 454,314.80, 681,472.20 and 154,695.80 is: 232,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,314.80 : 681,472.20 = 154,695.80 : x
  2. Step 2: Convert to fraction form
    454,314.80/681,472.20 = 154,695.80/x
  3. Step 3: Cross multiply
    454,314.80x = 681,472.20 × 154,695.80
  4. Step 4: Simplify right side
    454,314.80x = 105,420,887,156.76
  5. Step 5: Solve for x
    x = 105,420,887,156.76/454,314.80
  6. Step 6: Final answer
    x = 232,043.70

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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.