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Finding the Fourth Proportional to 124,441.87, 171,744.15 and 69,256.78

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Solution

The fourth proportional to 124,441.87, 171,744.15 and 69,256.78 is: 95,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,441.87 : 171,744.15 = 69,256.78 : x
  2. Step 2: Convert to fraction form
    124,441.87/171,744.15 = 69,256.78/x
  3. Step 3: Cross multiply
    124,441.87x = 171,744.15 × 69,256.78
  4. Step 4: Simplify right side
    124,441.87x = 11,894,446,812.84
  5. Step 5: Solve for x
    x = 11,894,446,812.84/124,441.87
  6. Step 6: Final answer
    x = 95,582.35

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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.