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Finding the Fourth Proportional to 75,575.70, 113,363.55 and 67,410.90

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Solution

The fourth proportional to 75,575.70, 113,363.55 and 67,410.90 is: 101,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,575.70 : 113,363.55 = 67,410.90 : x
  2. Step 2: Convert to fraction form
    75,575.70/113,363.55 = 67,410.90/x
  3. Step 3: Cross multiply
    75,575.70x = 113,363.55 × 67,410.90
  4. Step 4: Simplify right side
    75,575.70x = 7,641,938,932.70
  5. Step 5: Solve for x
    x = 7,641,938,932.70/75,575.70
  6. Step 6: Final answer
    x = 101,116.35

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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.