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Finding the Fourth Proportional to 164,013.80, 246,020.70 and 162,631.40

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Solution

The fourth proportional to 164,013.80, 246,020.70 and 162,631.40 is: 243,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,013.80 : 246,020.70 = 162,631.40 : x
  2. Step 2: Convert to fraction form
    164,013.80/246,020.70 = 162,631.40/x
  3. Step 3: Cross multiply
    164,013.80x = 246,020.70 × 162,631.40
  4. Step 4: Simplify right side
    164,013.80x = 40,010,690,869.98
  5. Step 5: Solve for x
    x = 40,010,690,869.98/164,013.80
  6. Step 6: Final answer
    x = 243,947.10

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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.