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Finding the Fourth Proportional to 74,998.20, 112,205.70 and 48,754.20

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Solution

The fourth proportional to 74,998.20, 112,205.70 and 48,754.20 is: 72,941.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,998.20 : 112,205.70 = 48,754.20 : x
  2. Step 2: Convert to fraction form
    74,998.20/112,205.70 = 48,754.20/x
  3. Step 3: Cross multiply
    74,998.20x = 112,205.70 × 48,754.20
  4. Step 4: Simplify right side
    74,998.20x = 5,470,499,138.94
  5. Step 5: Solve for x
    x = 5,470,499,138.94/74,998.20
  6. Step 6: Final answer
    x = 72,941.74

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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.