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Finding the Fourth Proportional to 99,423.40, 149,135.10 and 33,759.40

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Solution

The fourth proportional to 99,423.40, 149,135.10 and 33,759.40 is: 50,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,423.40 : 149,135.10 = 33,759.40 : x
  2. Step 2: Convert to fraction form
    99,423.40/149,135.10 = 33,759.40/x
  3. Step 3: Cross multiply
    99,423.40x = 149,135.10 × 33,759.40
  4. Step 4: Simplify right side
    99,423.40x = 5,034,711,494.94
  5. Step 5: Solve for x
    x = 5,034,711,494.94/99,423.40
  6. Step 6: Final answer
    x = 50,639.10

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Similar ratio
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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.