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Finding the Fourth Proportional to 220,468.13, 304,301.12 and 135,535.98

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Solution

The fourth proportional to 220,468.13, 304,301.12 and 135,535.98 is: 187,073.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,468.13 : 304,301.12 = 135,535.98 : x
  2. Step 2: Convert to fraction form
    220,468.13/304,301.12 = 135,535.98/x
  3. Step 3: Cross multiply
    220,468.13x = 304,301.12 × 135,535.98
  4. Step 4: Simplify right side
    220,468.13x = 41,243,749,836.62
  5. Step 5: Solve for x
    x = 41,243,749,836.62/220,468.13
  6. Step 6: Final answer
    x = 187,073.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.