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Finding the Fourth Proportional to 79,363.54, 109,425.90 and 68,588.92

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Solution

The fourth proportional to 79,363.54, 109,425.90 and 68,588.92 is: 94,569.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,363.54 : 109,425.90 = 68,588.92 : x
  2. Step 2: Convert to fraction form
    79,363.54/109,425.90 = 68,588.92/x
  3. Step 3: Cross multiply
    79,363.54x = 109,425.90 × 68,588.92
  4. Step 4: Simplify right side
    79,363.54x = 7,505,404,301.03
  5. Step 5: Solve for x
    x = 7,505,404,301.03/79,363.54
  6. Step 6: Final answer
    x = 94,569.93

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1.5x scale

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.