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Finding the Fourth Proportional to 169,300.80, 253,432.80 and 122,644.80

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Solution

The fourth proportional to 169,300.80, 253,432.80 and 122,644.80 is: 183,591.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,300.80 : 253,432.80 = 122,644.80 : x
  2. Step 2: Convert to fraction form
    169,300.80/253,432.80 = 122,644.80/x
  3. Step 3: Cross multiply
    169,300.80x = 253,432.80 × 122,644.80
  4. Step 4: Simplify right side
    169,300.80x = 31,082,215,069.44
  5. Step 5: Solve for x
    x = 31,082,215,069.44/169,300.80
  6. Step 6: Final answer
    x = 183,591.66

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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.