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Finding the Fourth Proportional to 169,270.20, 253,905.30 and 42,910.20

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Solution

The fourth proportional to 169,270.20, 253,905.30 and 42,910.20 is: 64,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,270.20 : 253,905.30 = 42,910.20 : x
  2. Step 2: Convert to fraction form
    169,270.20/253,905.30 = 42,910.20/x
  3. Step 3: Cross multiply
    169,270.20x = 253,905.30 × 42,910.20
  4. Step 4: Simplify right side
    169,270.20x = 10,895,127,204.06
  5. Step 5: Solve for x
    x = 10,895,127,204.06/169,270.20
  6. Step 6: Final answer
    x = 64,365.30

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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.