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Finding the Fourth Proportional to 115,048.43, 172,248.21 and 60,890.43

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Solution

The fourth proportional to 115,048.43, 172,248.21 and 60,890.43 is: 91,163.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,048.43 : 172,248.21 = 60,890.43 : x
  2. Step 2: Convert to fraction form
    115,048.43/172,248.21 = 60,890.43/x
  3. Step 3: Cross multiply
    115,048.43x = 172,248.21 × 60,890.43
  4. Step 4: Simplify right side
    115,048.43x = 10,488,267,573.63
  5. Step 5: Solve for x
    x = 10,488,267,573.63/115,048.43
  6. Step 6: Final answer
    x = 91,163.94

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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.