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Finding the Fourth Proportional to 151,403.20, 227,104.80 and 109,412.80

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Solution

The fourth proportional to 151,403.20, 227,104.80 and 109,412.80 is: 164,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,403.20 : 227,104.80 = 109,412.80 : x
  2. Step 2: Convert to fraction form
    151,403.20/227,104.80 = 109,412.80/x
  3. Step 3: Cross multiply
    151,403.20x = 227,104.80 × 109,412.80
  4. Step 4: Simplify right side
    151,403.20x = 24,848,172,061.44
  5. Step 5: Solve for x
    x = 24,848,172,061.44/151,403.20
  6. Step 6: Final answer
    x = 164,119.20

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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.