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Finding the Fourth Proportional to 220,253.82, 330,402.54 and 70,456.50

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Solution

The fourth proportional to 220,253.82, 330,402.54 and 70,456.50 is: 105,691.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,253.82 : 330,402.54 = 70,456.50 : x
  2. Step 2: Convert to fraction form
    220,253.82/330,402.54 = 70,456.50/x
  3. Step 3: Cross multiply
    220,253.82x = 330,402.54 × 70,456.50
  4. Step 4: Simplify right side
    220,253.82x = 23,279,006,559.51
  5. Step 5: Solve for x
    x = 23,279,006,559.51/220,253.82
  6. Step 6: Final answer
    x = 105,691.73

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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.