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Finding the Fourth Proportional to 143,707.57, 215,587.51 and 48,932.91

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Solution

The fourth proportional to 143,707.57, 215,587.51 and 48,932.91 is: 73,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,707.57 : 215,587.51 = 48,932.91 : x
  2. Step 2: Convert to fraction form
    143,707.57/215,587.51 = 48,932.91/x
  3. Step 3: Cross multiply
    143,707.57x = 215,587.51 × 48,932.91
  4. Step 4: Simplify right side
    143,707.57x = 10,549,324,101.62
  5. Step 5: Solve for x
    x = 10,549,324,101.62/143,707.57
  6. Step 6: Final answer
    x = 73,408.27

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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.