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Finding the Fourth Proportional to 87,476.70, 131,215.05 and 48,110.70

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Solution

The fourth proportional to 87,476.70, 131,215.05 and 48,110.70 is: 72,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,476.70 : 131,215.05 = 48,110.70 : x
  2. Step 2: Convert to fraction form
    87,476.70/131,215.05 = 48,110.70/x
  3. Step 3: Cross multiply
    87,476.70x = 131,215.05 × 48,110.70
  4. Step 4: Simplify right side
    87,476.70x = 6,312,847,906.04
  5. Step 5: Solve for x
    x = 6,312,847,906.04/87,476.70
  6. Step 6: Final answer
    x = 72,166.05

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1.5x scale

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.