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Finding the Fourth Proportional to 91,099.76, 125,665.02 and 54,775.97

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Solution

The fourth proportional to 91,099.76, 125,665.02 and 54,775.97 is: 75,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,099.76 : 125,665.02 = 54,775.97 : x
  2. Step 2: Convert to fraction form
    91,099.76/125,665.02 = 54,775.97/x
  3. Step 3: Cross multiply
    91,099.76x = 125,665.02 × 54,775.97
  4. Step 4: Simplify right side
    91,099.76x = 6,883,422,737.24
  5. Step 5: Solve for x
    x = 6,883,422,737.24/91,099.76
  6. Step 6: Final answer
    x = 75,559.18

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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.