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Finding the Fourth Proportional to 99,400.10, 149,100.15 and 88,513.70

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Solution

The fourth proportional to 99,400.10, 149,100.15 and 88,513.70 is: 132,770.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,400.10 : 149,100.15 = 88,513.70 : x
  2. Step 2: Convert to fraction form
    99,400.10/149,100.15 = 88,513.70/x
  3. Step 3: Cross multiply
    99,400.10x = 149,100.15 × 88,513.70
  4. Step 4: Simplify right side
    99,400.10x = 13,197,405,947.06
  5. Step 5: Solve for x
    x = 13,197,405,947.06/99,400.10
  6. Step 6: Final answer
    x = 132,770.55

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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.