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Finding the Fourth Proportional to 99,414.40, 149,121.60 and 33,750.40

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Solution

The fourth proportional to 99,414.40, 149,121.60 and 33,750.40 is: 50,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,414.40 : 149,121.60 = 33,750.40 : x
  2. Step 2: Convert to fraction form
    99,414.40/149,121.60 = 33,750.40/x
  3. Step 3: Cross multiply
    99,414.40x = 149,121.60 × 33,750.40
  4. Step 4: Simplify right side
    99,414.40x = 5,032,913,648.64
  5. Step 5: Solve for x
    x = 5,032,913,648.64/99,414.40
  6. Step 6: Final answer
    x = 50,625.60

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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.