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Finding the Fourth Proportional to 186,393.68, 257,234.04 and 140,370.92

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Solution

The fourth proportional to 186,393.68, 257,234.04 and 140,370.92 is: 193,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,393.68 : 257,234.04 = 140,370.92 : x
  2. Step 2: Convert to fraction form
    186,393.68/257,234.04 = 140,370.92/x
  3. Step 3: Cross multiply
    186,393.68x = 257,234.04 × 140,370.92
  4. Step 4: Simplify right side
    186,393.68x = 36,108,178,850.12
  5. Step 5: Solve for x
    x = 36,108,178,850.12/186,393.68
  6. Step 6: Final answer
    x = 193,719.97

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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.