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Finding the Fourth Proportional to 141,901.62, 212,874.30 and 48,385.50

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Solution

The fourth proportional to 141,901.62, 212,874.30 and 48,385.50 is: 72,585.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,901.62 : 212,874.30 = 48,385.50 : x
  2. Step 2: Convert to fraction form
    141,901.62/212,874.30 = 48,385.50/x
  3. Step 3: Cross multiply
    141,901.62x = 212,874.30 × 48,385.50
  4. Step 4: Simplify right side
    141,901.62x = 10,300,029,442.65
  5. Step 5: Solve for x
    x = 10,300,029,442.65/141,901.62
  6. Step 6: Final answer
    x = 72,585.71

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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.