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Finding the Fourth Proportional to 186,694.38, 257,639.31 and 101,809.62

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Solution

The fourth proportional to 186,694.38, 257,639.31 and 101,809.62 is: 140,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,694.38 : 257,639.31 = 101,809.62 : x
  2. Step 2: Convert to fraction form
    186,694.38/257,639.31 = 101,809.62/x
  3. Step 3: Cross multiply
    186,694.38x = 257,639.31 × 101,809.62
  4. Step 4: Simplify right side
    186,694.38x = 26,230,160,248.16
  5. Step 5: Solve for x
    x = 26,230,160,248.16/186,694.38
  6. Step 6: Final answer
    x = 140,497.86

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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.