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Finding the Fourth Proportional to 87,592.71, 120,878.07 and 49,866.96

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Solution

The fourth proportional to 87,592.71, 120,878.07 and 49,866.96 is: 68,816.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,592.71 : 120,878.07 = 49,866.96 : x
  2. Step 2: Convert to fraction form
    87,592.71/120,878.07 = 49,866.96/x
  3. Step 3: Cross multiply
    87,592.71x = 120,878.07 × 49,866.96
  4. Step 4: Simplify right side
    87,592.71x = 6,027,821,881.57
  5. Step 5: Solve for x
    x = 6,027,821,881.57/87,592.71
  6. Step 6: Final answer
    x = 68,816.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.