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Finding the Fourth Proportional to 124,412.91, 171,684.70 and 69,963.52

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Solution

The fourth proportional to 124,412.91, 171,684.70 and 69,963.52 is: 96,546.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,412.91 : 171,684.70 = 69,963.52 : x
  2. Step 2: Convert to fraction form
    124,412.91/171,684.70 = 69,963.52/x
  3. Step 3: Cross multiply
    124,412.91x = 171,684.70 × 69,963.52
  4. Step 4: Simplify right side
    124,412.91x = 12,011,665,942.14
  5. Step 5: Solve for x
    x = 12,011,665,942.14/124,412.91
  6. Step 6: Final answer
    x = 96,546.78

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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.