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Finding the Fourth Proportional to 372,281.70, 558,422.55 and 268,083.30

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Solution

The fourth proportional to 372,281.70, 558,422.55 and 268,083.30 is: 402,124.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,281.70 : 558,422.55 = 268,083.30 : x
  2. Step 2: Convert to fraction form
    372,281.70/558,422.55 = 268,083.30/x
  3. Step 3: Cross multiply
    372,281.70x = 558,422.55 × 268,083.30
  4. Step 4: Simplify right side
    372,281.70x = 149,703,759,998.42
  5. Step 5: Solve for x
    x = 149,703,759,998.42/372,281.70
  6. Step 6: Final answer
    x = 402,124.95

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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.