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Finding the Fourth Proportional to 126,697.65, 174,835.22 and 69,325.52

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Solution

The fourth proportional to 126,697.65, 174,835.22 and 69,325.52 is: 95,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,697.65 : 174,835.22 = 69,325.52 : x
  2. Step 2: Convert to fraction form
    126,697.65/174,835.22 = 69,325.52/x
  3. Step 3: Cross multiply
    126,697.65x = 174,835.22 × 69,325.52
  4. Step 4: Simplify right side
    126,697.65x = 12,120,542,631.27
  5. Step 5: Solve for x
    x = 12,120,542,631.27/126,697.65
  6. Step 6: Final answer
    x = 95,665.10

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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.