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Finding the Fourth Proportional to 124,503.46, 171,829.11 and 69,318.34

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Solution

The fourth proportional to 124,503.46, 171,829.11 and 69,318.34 is: 95,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,503.46 : 171,829.11 = 69,318.34 : x
  2. Step 2: Convert to fraction form
    124,503.46/171,829.11 = 69,318.34/x
  3. Step 3: Cross multiply
    124,503.46x = 171,829.11 × 69,318.34
  4. Step 4: Simplify right side
    124,503.46x = 11,910,908,668.88
  5. Step 5: Solve for x
    x = 11,910,908,668.88/124,503.46
  6. Step 6: Final answer
    x = 95,667.29

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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.