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Finding the Fourth Proportional to 162,772.80, 244,013.40 and 106,639.80

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Solution

The fourth proportional to 162,772.80, 244,013.40 and 106,639.80 is: 159,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,772.80 : 244,013.40 = 106,639.80 : x
  2. Step 2: Convert to fraction form
    162,772.80/244,013.40 = 106,639.80/x
  3. Step 3: Cross multiply
    162,772.80x = 244,013.40 × 106,639.80
  4. Step 4: Simplify right side
    162,772.80x = 26,021,540,173.32
  5. Step 5: Solve for x
    x = 26,021,540,173.32/162,772.80
  6. Step 6: Final answer
    x = 159,864.18

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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.