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Finding the Fourth Proportional to 124,169.52, 171,334.88 and 69,724.50

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Solution

The fourth proportional to 124,169.52, 171,334.88 and 69,724.50 is: 96,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,169.52 : 171,334.88 = 69,724.50 : x
  2. Step 2: Convert to fraction form
    124,169.52/171,334.88 = 69,724.50/x
  3. Step 3: Cross multiply
    124,169.52x = 171,334.88 × 69,724.50
  4. Step 4: Simplify right side
    124,169.52x = 11,946,238,840.56
  5. Step 5: Solve for x
    x = 11,946,238,840.56/124,169.52
  6. Step 6: Final answer
    x = 96,209.11

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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.