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Finding the Fourth Proportional to 75,100.20, 112,358.70 and 48,856.20

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Solution

The fourth proportional to 75,100.20, 112,358.70 and 48,856.20 is: 73,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,100.20 : 112,358.70 = 48,856.20 : x
  2. Step 2: Convert to fraction form
    75,100.20/112,358.70 = 48,856.20/x
  3. Step 3: Cross multiply
    75,100.20x = 112,358.70 × 48,856.20
  4. Step 4: Simplify right side
    75,100.20x = 5,489,419,118.94
  5. Step 5: Solve for x
    x = 5,489,419,118.94/75,100.20
  6. Step 6: Final answer
    x = 73,094.60

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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.