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Finding the Fourth Proportional to 150,429.44, 207,614.40 and 86,754.56

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Solution

The fourth proportional to 150,429.44, 207,614.40 and 86,754.56 is: 119,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,429.44 : 207,614.40 = 86,754.56 : x
  2. Step 2: Convert to fraction form
    150,429.44/207,614.40 = 86,754.56/x
  3. Step 3: Cross multiply
    150,429.44x = 207,614.40 × 86,754.56
  4. Step 4: Simplify right side
    150,429.44x = 18,011,495,921.66
  5. Step 5: Solve for x
    x = 18,011,495,921.66/150,429.44
  6. Step 6: Final answer
    x = 119,733.85

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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.