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Finding the Fourth Proportional to 169,747.20, 254,620.80 and 151,376.40

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Solution

The fourth proportional to 169,747.20, 254,620.80 and 151,376.40 is: 227,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,747.20 : 254,620.80 = 151,376.40 : x
  2. Step 2: Convert to fraction form
    169,747.20/254,620.80 = 151,376.40/x
  3. Step 3: Cross multiply
    169,747.20x = 254,620.80 × 151,376.40
  4. Step 4: Simplify right side
    169,747.20x = 38,543,580,069.12
  5. Step 5: Solve for x
    x = 38,543,580,069.12/169,747.20
  6. Step 6: Final answer
    x = 227,064.60

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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.