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Finding the Fourth Proportional to 151,086.66, 208,509.84 and 100,011.44

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Solution

The fourth proportional to 151,086.66, 208,509.84 and 100,011.44 is: 138,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,086.66 : 208,509.84 = 100,011.44 : x
  2. Step 2: Convert to fraction form
    151,086.66/208,509.84 = 100,011.44/x
  3. Step 3: Cross multiply
    151,086.66x = 208,509.84 × 100,011.44
  4. Step 4: Simplify right side
    151,086.66x = 20,853,368,310.02
  5. Step 5: Solve for x
    x = 20,853,368,310.02/151,086.66
  6. Step 6: Final answer
    x = 138,022.56

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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.