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Finding the Fourth Proportional to 75,775.80, 113,663.70 and 46,251.30

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Solution

The fourth proportional to 75,775.80, 113,663.70 and 46,251.30 is: 69,376.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,775.80 : 113,663.70 = 46,251.30 : x
  2. Step 2: Convert to fraction form
    75,775.80/113,663.70 = 46,251.30/x
  3. Step 3: Cross multiply
    75,775.80x = 113,663.70 × 46,251.30
  4. Step 4: Simplify right side
    75,775.80x = 5,257,093,887.81
  5. Step 5: Solve for x
    x = 5,257,093,887.81/75,775.80
  6. Step 6: Final answer
    x = 69,376.95

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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.