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Finding the Fourth Proportional to 187,061.76, 280,552.50 and 53,917.20

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Solution

The fourth proportional to 187,061.76, 280,552.50 and 53,917.20 is: 80,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,061.76 : 280,552.50 = 53,917.20 : x
  2. Step 2: Convert to fraction form
    187,061.76/280,552.50 = 53,917.20/x
  3. Step 3: Cross multiply
    187,061.76x = 280,552.50 × 53,917.20
  4. Step 4: Simplify right side
    187,061.76x = 15,126,605,253
  5. Step 5: Solve for x
    x = 15,126,605,253/187,061.76
  6. Step 6: Final answer
    x = 80,864.23

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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.