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Finding the Fourth Proportional to 124,764.75, 187,148.75 and 41,658.75

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Solution

The fourth proportional to 124,764.75, 187,148.75 and 41,658.75 is: 62,488.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,764.75 : 187,148.75 = 41,658.75 : x
  2. Step 2: Convert to fraction form
    124,764.75/187,148.75 = 41,658.75/x
  3. Step 3: Cross multiply
    124,764.75x = 187,148.75 × 41,658.75
  4. Step 4: Simplify right side
    124,764.75x = 7,796,382,989.06
  5. Step 5: Solve for x
    x = 7,796,382,989.06/124,764.75
  6. Step 6: Final answer
    x = 62,488.67

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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.