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Finding the Fourth Proportional to 95,411.60, 143,002.20 and 48,640.40

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Solution

The fourth proportional to 95,411.60, 143,002.20 and 48,640.40 is: 72,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,411.60 : 143,002.20 = 48,640.40 : x
  2. Step 2: Convert to fraction form
    95,411.60/143,002.20 = 48,640.40/x
  3. Step 3: Cross multiply
    95,411.60x = 143,002.20 × 48,640.40
  4. Step 4: Simplify right side
    95,411.60x = 6,955,684,208.88
  5. Step 5: Solve for x
    x = 6,955,684,208.88/95,411.60
  6. Step 6: Final answer
    x = 72,901.87

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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.