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Finding the Fourth Proportional to 99,568.60, 149,352.90 and 88,682.20

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Solution

The fourth proportional to 99,568.60, 149,352.90 and 88,682.20 is: 133,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,568.60 : 149,352.90 = 88,682.20 : x
  2. Step 2: Convert to fraction form
    99,568.60/149,352.90 = 88,682.20/x
  3. Step 3: Cross multiply
    99,568.60x = 149,352.90 × 88,682.20
  4. Step 4: Simplify right side
    99,568.60x = 13,244,943,748.38
  5. Step 5: Solve for x
    x = 13,244,943,748.38/99,568.60
  6. Step 6: Final answer
    x = 133,023.30

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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.