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Finding the Fourth Proportional to 124,645.96, 187,023.72 and 65,467.88

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Solution

The fourth proportional to 124,645.96, 187,023.72 and 65,467.88 is: 98,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,645.96 : 187,023.72 = 65,467.88 : x
  2. Step 2: Convert to fraction form
    124,645.96/187,023.72 = 65,467.88/x
  3. Step 3: Cross multiply
    124,645.96x = 187,023.72 × 65,467.88
  4. Step 4: Simplify right side
    124,645.96x = 12,244,046,458.11
  5. Step 5: Solve for x
    x = 12,244,046,458.11/124,645.96
  6. Step 6: Final answer
    x = 98,230.59

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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.