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Finding the Fourth Proportional to 150,659.74, 225,978.60 and 70,715.92

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Solution

The fourth proportional to 150,659.74, 225,978.60 and 70,715.92 is: 106,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,659.74 : 225,978.60 = 70,715.92 : x
  2. Step 2: Convert to fraction form
    150,659.74/225,978.60 = 70,715.92/x
  3. Step 3: Cross multiply
    150,659.74x = 225,978.60 × 70,715.92
  4. Step 4: Simplify right side
    150,659.74x = 15,980,284,599.31
  5. Step 5: Solve for x
    x = 15,980,284,599.31/150,659.74
  6. Step 6: Final answer
    x = 106,068.71

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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.