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Finding the Fourth Proportional to 99,816.60, 149,600.31 and 49,910.97

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Solution

The fourth proportional to 99,816.60, 149,600.31 and 49,910.97 is: 74,804.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,816.60 : 149,600.31 = 49,910.97 : x
  2. Step 2: Convert to fraction form
    99,816.60/149,600.31 = 49,910.97/x
  3. Step 3: Cross multiply
    99,816.60x = 149,600.31 × 49,910.97
  4. Step 4: Simplify right side
    99,816.60x = 7,466,696,958.24
  5. Step 5: Solve for x
    x = 7,466,696,958.24/99,816.60
  6. Step 6: Final answer
    x = 74,804.16

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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.