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Finding the Fourth Proportional to 99,395.10, 149,092.65 and 88,508.70

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Solution

The fourth proportional to 99,395.10, 149,092.65 and 88,508.70 is: 132,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,395.10 : 149,092.65 = 88,508.70 : x
  2. Step 2: Convert to fraction form
    99,395.10/149,092.65 = 88,508.70/x
  3. Step 3: Cross multiply
    99,395.10x = 149,092.65 × 88,508.70
  4. Step 4: Simplify right side
    99,395.10x = 13,195,996,631.06
  5. Step 5: Solve for x
    x = 13,195,996,631.06/99,395.10
  6. Step 6: Final answer
    x = 132,763.05

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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.