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Finding the Fourth Proportional to 186,759.81, 257,728.22 and 101,876.87

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Solution

The fourth proportional to 186,759.81, 257,728.22 and 101,876.87 is: 140,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,759.81 : 257,728.22 = 101,876.87 : x
  2. Step 2: Convert to fraction form
    186,759.81/257,728.22 = 101,876.87/x
  3. Step 3: Cross multiply
    186,759.81x = 257,728.22 × 101,876.87
  4. Step 4: Simplify right side
    186,759.81x = 26,256,542,566.25
  5. Step 5: Solve for x
    x = 26,256,542,566.25/186,759.81
  6. Step 6: Final answer
    x = 140,589.90

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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.