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Finding the Fourth Proportional to 186,955.92, 280,431.18 and 87,060.24

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Solution

The fourth proportional to 186,955.92, 280,431.18 and 87,060.24 is: 130,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,955.92 : 280,431.18 = 87,060.24 : x
  2. Step 2: Convert to fraction form
    186,955.92/280,431.18 = 87,060.24/x
  3. Step 3: Cross multiply
    186,955.92x = 280,431.18 × 87,060.24
  4. Step 4: Simplify right side
    186,955.92x = 24,414,405,834.28
  5. Step 5: Solve for x
    x = 24,414,405,834.28/186,955.92
  6. Step 6: Final answer
    x = 130,589.10

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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.