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Finding the Fourth Proportional to 91,867.92, 126,773.48 and 51,580.92

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Solution

The fourth proportional to 91,867.92, 126,773.48 and 51,580.92 is: 71,179.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,867.92 : 126,773.48 = 51,580.92 : x
  2. Step 2: Convert to fraction form
    91,867.92/126,773.48 = 51,580.92/x
  3. Step 3: Cross multiply
    91,867.92x = 126,773.48 × 51,580.92
  4. Step 4: Simplify right side
    91,867.92x = 6,539,092,730.00
  5. Step 5: Solve for x
    x = 6,539,092,730.00/91,867.92
  6. Step 6: Final answer
    x = 71,179.28

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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.