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Finding the Fourth Proportional to 99,362.52, 149,043.76 and 25,490.52

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Solution

The fourth proportional to 99,362.52, 149,043.76 and 25,490.52 is: 38,235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,362.52 : 149,043.76 = 25,490.52 : x
  2. Step 2: Convert to fraction form
    99,362.52/149,043.76 = 25,490.52/x
  3. Step 3: Cross multiply
    99,362.52x = 149,043.76 × 25,490.52
  4. Step 4: Simplify right side
    99,362.52x = 3,799,202,945.16
  5. Step 5: Solve for x
    x = 3,799,202,945.16/99,362.52
  6. Step 6: Final answer
    x = 38,235.77

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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.