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Finding the Fourth Proportional to 159,660.64, 239,490.98 and 64,942.36

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Solution

The fourth proportional to 159,660.64, 239,490.98 and 64,942.36 is: 97,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,660.64 : 239,490.98 = 64,942.36 : x
  2. Step 2: Convert to fraction form
    159,660.64/239,490.98 = 64,942.36/x
  3. Step 3: Cross multiply
    159,660.64x = 239,490.98 × 64,942.36
  4. Step 4: Simplify right side
    159,660.64x = 15,553,109,439.91
  5. Step 5: Solve for x
    x = 15,553,109,439.91/159,660.64
  6. Step 6: Final answer
    x = 97,413.55

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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.