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Finding the Fourth Proportional to 186,760.28, 257,731.05 and 101,879.12

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Solution

The fourth proportional to 186,760.28, 257,731.05 and 101,879.12 is: 140,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,760.28 : 257,731.05 = 101,879.12 : x
  2. Step 2: Convert to fraction form
    186,760.28/257,731.05 = 101,879.12/x
  3. Step 3: Cross multiply
    186,760.28x = 257,731.05 × 101,879.12
  4. Step 4: Simplify right side
    186,760.28x = 26,257,412,570.68
  5. Step 5: Solve for x
    x = 26,257,412,570.68/186,760.28
  6. Step 6: Final answer
    x = 140,594.20

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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.