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Finding the Fourth Proportional to 99,752.60, 149,504.16 and 49,846.70

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Solution

The fourth proportional to 99,752.60, 149,504.16 and 49,846.70 is: 74,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,752.60 : 149,504.16 = 49,846.70 : x
  2. Step 2: Convert to fraction form
    99,752.60/149,504.16 = 49,846.70/x
  3. Step 3: Cross multiply
    99,752.60x = 149,504.16 × 49,846.70
  4. Step 4: Simplify right side
    99,752.60x = 7,452,289,012.27
  5. Step 5: Solve for x
    x = 7,452,289,012.27/99,752.60
  6. Step 6: Final answer
    x = 74,707.72

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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.