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Finding the Fourth Proportional to 99,382.40, 149,121.41 and 49,466.85

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Solution

The fourth proportional to 99,382.40, 149,121.41 and 49,466.85 is: 74,224.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,382.40 : 149,121.41 = 49,466.85 : x
  2. Step 2: Convert to fraction form
    99,382.40/149,121.41 = 49,466.85/x
  3. Step 3: Cross multiply
    99,382.40x = 149,121.41 × 49,466.85
  4. Step 4: Simplify right side
    99,382.40x = 7,376,566,172.92
  5. Step 5: Solve for x
    x = 7,376,566,172.92/99,382.40
  6. Step 6: Final answer
    x = 74,224.07

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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.