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Finding the Fourth Proportional to 163,051.20, 244,576.80 and 140,500.80

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Solution

The fourth proportional to 163,051.20, 244,576.80 and 140,500.80 is: 210,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,051.20 : 244,576.80 = 140,500.80 : x
  2. Step 2: Convert to fraction form
    163,051.20/244,576.80 = 140,500.80/x
  3. Step 3: Cross multiply
    163,051.20x = 244,576.80 × 140,500.80
  4. Step 4: Simplify right side
    163,051.20x = 34,363,236,061.44
  5. Step 5: Solve for x
    x = 34,363,236,061.44/163,051.20
  6. Step 6: Final answer
    x = 210,751.20

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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.