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Finding the Fourth Proportional to 91,101.96, 125,723.82 and 52,858.62

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Solution

The fourth proportional to 91,101.96, 125,723.82 and 52,858.62 is: 72,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,101.96 : 125,723.82 = 52,858.62 : x
  2. Step 2: Convert to fraction form
    91,101.96/125,723.82 = 52,858.62/x
  3. Step 3: Cross multiply
    91,101.96x = 125,723.82 × 52,858.62
  4. Step 4: Simplify right side
    91,101.96x = 6,645,587,626.33
  5. Step 5: Solve for x
    x = 6,645,587,626.33/91,101.96
  6. Step 6: Final answer
    x = 72,946.70

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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.