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Finding the Fourth Proportional to 91,761, 126,632.10 and 52,017

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Solution

The fourth proportional to 91,761, 126,632.10 and 52,017 is: 71,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,761 : 126,632.10 = 52,017 : x
  2. Step 2: Convert to fraction form
    91,761/126,632.10 = 52,017/x
  3. Step 3: Cross multiply
    91,761x = 126,632.10 × 52,017
  4. Step 4: Simplify right side
    91,761x = 6,587,021,945.70
  5. Step 5: Solve for x
    x = 6,587,021,945.70/91,761
  6. Step 6: Final answer
    x = 71,784.55

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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.