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Finding the Fourth Proportional to 99,182.54, 136,868.15 and 53,859.56

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Solution

The fourth proportional to 99,182.54, 136,868.15 and 53,859.56 is: 74,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,182.54 : 136,868.15 = 53,859.56 : x
  2. Step 2: Convert to fraction form
    99,182.54/136,868.15 = 53,859.56/x
  3. Step 3: Cross multiply
    99,182.54x = 136,868.15 × 53,859.56
  4. Step 4: Simplify right side
    99,182.54x = 7,371,657,787.32
  5. Step 5: Solve for x
    x = 7,371,657,787.32/99,182.54
  6. Step 6: Final answer
    x = 74,324.15

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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.