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Finding the Fourth Proportional to 99,466.53, 149,201.36 and 55,373.54

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Solution

The fourth proportional to 99,466.53, 149,201.36 and 55,373.54 is: 83,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,466.53 : 149,201.36 = 55,373.54 : x
  2. Step 2: Convert to fraction form
    99,466.53/149,201.36 = 55,373.54/x
  3. Step 3: Cross multiply
    99,466.53x = 149,201.36 × 55,373.54
  4. Step 4: Simplify right side
    99,466.53x = 8,261,806,660.79
  5. Step 5: Solve for x
    x = 8,261,806,660.79/99,466.53
  6. Step 6: Final answer
    x = 83,061.18

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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.