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Finding the Fourth Proportional to 115,397.80, 173,237.10 and 73,277.80

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Solution

The fourth proportional to 115,397.80, 173,237.10 and 73,277.80 is: 110,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,397.80 : 173,237.10 = 73,277.80 : x
  2. Step 2: Convert to fraction form
    115,397.80/173,237.10 = 73,277.80/x
  3. Step 3: Cross multiply
    115,397.80x = 173,237.10 × 73,277.80
  4. Step 4: Simplify right side
    115,397.80x = 12,694,433,566.38
  5. Step 5: Solve for x
    x = 12,694,433,566.38/115,397.80
  6. Step 6: Final answer
    x = 110,005.85

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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.