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Finding the Fourth Proportional to 148,866.53, 205,468.25 and 91,555.11

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Solution

The fourth proportional to 148,866.53, 205,468.25 and 91,555.11 is: 126,366.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,866.53 : 205,468.25 = 91,555.11 : x
  2. Step 2: Convert to fraction form
    148,866.53/205,468.25 = 91,555.11/x
  3. Step 3: Cross multiply
    148,866.53x = 205,468.25 × 91,555.11
  4. Step 4: Simplify right side
    148,866.53x = 18,811,667,772.48
  5. Step 5: Solve for x
    x = 18,811,667,772.48/148,866.53
  6. Step 6: Final answer
    x = 126,366.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.