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Finding the Fourth Proportional to 91,966.80, 137,950.20 and 36,562.80

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Solution

The fourth proportional to 91,966.80, 137,950.20 and 36,562.80 is: 54,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,966.80 : 137,950.20 = 36,562.80 : x
  2. Step 2: Convert to fraction form
    91,966.80/137,950.20 = 36,562.80/x
  3. Step 3: Cross multiply
    91,966.80x = 137,950.20 × 36,562.80
  4. Step 4: Simplify right side
    91,966.80x = 5,043,845,572.56
  5. Step 5: Solve for x
    x = 5,043,845,572.56/91,966.80
  6. Step 6: Final answer
    x = 54,844.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.