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Finding the Fourth Proportional to 373,087.80, 559,711.68 and 120,382.76

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Solution

The fourth proportional to 373,087.80, 559,711.68 and 120,382.76 is: 180,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,087.80 : 559,711.68 = 120,382.76 : x
  2. Step 2: Convert to fraction form
    373,087.80/559,711.68 = 120,382.76/x
  3. Step 3: Cross multiply
    373,087.80x = 559,711.68 × 120,382.76
  4. Step 4: Simplify right side
    373,087.80x = 67,379,636,842.64
  5. Step 5: Solve for x
    x = 67,379,636,842.64/373,087.80
  6. Step 6: Final answer
    x = 180,599.95

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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.