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Finding the Fourth Proportional to 99,616.60, 149,464.95 and 40,456.90

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Solution

The fourth proportional to 99,616.60, 149,464.95 and 40,456.90 is: 60,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,616.60 : 149,464.95 = 40,456.90 : x
  2. Step 2: Convert to fraction form
    99,616.60/149,464.95 = 40,456.90/x
  3. Step 3: Cross multiply
    99,616.60x = 149,464.95 × 40,456.90
  4. Step 4: Simplify right side
    99,616.60x = 6,046,888,535.66
  5. Step 5: Solve for x
    x = 6,046,888,535.66/99,616.60
  6. Step 6: Final answer
    x = 60,701.62

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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.