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Finding the Fourth Proportional to 75,437.24, 113,155.88 and 20,033.24

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Solution

The fourth proportional to 75,437.24, 113,155.88 and 20,033.24 is: 30,049.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,437.24 : 113,155.88 = 20,033.24 : x
  2. Step 2: Convert to fraction form
    75,437.24/113,155.88 = 20,033.24/x
  3. Step 3: Cross multiply
    75,437.24x = 113,155.88 × 20,033.24
  4. Step 4: Simplify right side
    75,437.24x = 2,266,878,901.45
  5. Step 5: Solve for x
    x = 2,266,878,901.45/75,437.24
  6. Step 6: Final answer
    x = 30,049.87

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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.