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Finding the Fourth Proportional to 261,449.72, 360,800.62 and 148,272.48

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Solution

The fourth proportional to 261,449.72, 360,800.62 and 148,272.48 is: 204,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,449.72 : 360,800.62 = 148,272.48 : x
  2. Step 2: Convert to fraction form
    261,449.72/360,800.62 = 148,272.48/x
  3. Step 3: Cross multiply
    261,449.72x = 360,800.62 × 148,272.48
  4. Step 4: Simplify right side
    261,449.72x = 53,496,802,712.94
  5. Step 5: Solve for x
    x = 53,496,802,712.94/261,449.72
  6. Step 6: Final answer
    x = 204,616.03

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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.