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Finding the Fourth Proportional to 91,273.96, 125,905.50 and 54,950.14

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Solution

The fourth proportional to 91,273.96, 125,905.50 and 54,950.14 is: 75,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,273.96 : 125,905.50 = 54,950.14 : x
  2. Step 2: Convert to fraction form
    91,273.96/125,905.50 = 54,950.14/x
  3. Step 3: Cross multiply
    91,273.96x = 125,905.50 × 54,950.14
  4. Step 4: Simplify right side
    91,273.96x = 6,918,524,851.77
  5. Step 5: Solve for x
    x = 6,918,524,851.77/91,273.96
  6. Step 6: Final answer
    x = 75,799.55

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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.