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Finding the Fourth Proportional to 148,409.92, 204,836.60 and 136,454.32

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Solution

The fourth proportional to 148,409.92, 204,836.60 and 136,454.32 is: 188,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,409.92 : 204,836.60 = 136,454.32 : x
  2. Step 2: Convert to fraction form
    148,409.92/204,836.60 = 136,454.32/x
  3. Step 3: Cross multiply
    148,409.92x = 204,836.60 × 136,454.32
  4. Step 4: Simplify right side
    148,409.92x = 27,950,838,964.11
  5. Step 5: Solve for x
    x = 27,950,838,964.11/148,409.92
  6. Step 6: Final answer
    x = 188,335.38

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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.