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Finding the Fourth Proportional to 186,785.95, 280,081.59 and 66,796.66

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Solution

The fourth proportional to 186,785.95, 280,081.59 and 66,796.66 is: 100,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,785.95 : 280,081.59 = 66,796.66 : x
  2. Step 2: Convert to fraction form
    186,785.95/280,081.59 = 66,796.66/x
  3. Step 3: Cross multiply
    186,785.95x = 280,081.59 × 66,796.66
  4. Step 4: Simplify right side
    186,785.95x = 18,708,514,739.49
  5. Step 5: Solve for x
    x = 18,708,514,739.49/186,785.95
  6. Step 6: Final answer
    x = 100,160.18

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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.