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Finding the Fourth Proportional to 96,891, 145,319.70 and 26,751.48

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Solution

The fourth proportional to 96,891, 145,319.70 and 26,751.48 is: 40,122.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,891 : 145,319.70 = 26,751.48 : x
  2. Step 2: Convert to fraction form
    96,891/145,319.70 = 26,751.48/x
  3. Step 3: Cross multiply
    96,891x = 145,319.70 × 26,751.48
  4. Step 4: Simplify right side
    96,891x = 3,887,517,048.16
  5. Step 5: Solve for x
    x = 3,887,517,048.16/96,891
  6. Step 6: Final answer
    x = 40,122.58

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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.