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Finding the Fourth Proportional to 187,856.94, 281,877.81 and 87,999.87

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Solution

The fourth proportional to 187,856.94, 281,877.81 and 87,999.87 is: 132,043.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,856.94 : 281,877.81 = 87,999.87 : x
  2. Step 2: Convert to fraction form
    187,856.94/281,877.81 = 87,999.87/x
  3. Step 3: Cross multiply
    187,856.94x = 281,877.81 × 87,999.87
  4. Step 4: Simplify right side
    187,856.94x = 24,805,210,635.88
  5. Step 5: Solve for x
    x = 24,805,210,635.88/187,856.94
  6. Step 6: Final answer
    x = 132,043.09

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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.