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Finding the Fourth Proportional to 87,597.93, 120,743.16 and 68,444.30

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Solution

The fourth proportional to 87,597.93, 120,743.16 and 68,444.30 is: 94,342.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,597.93 : 120,743.16 = 68,444.30 : x
  2. Step 2: Convert to fraction form
    87,597.93/120,743.16 = 68,444.30/x
  3. Step 3: Cross multiply
    87,597.93x = 120,743.16 × 68,444.30
  4. Step 4: Simplify right side
    87,597.93x = 8,264,180,462.27
  5. Step 5: Solve for x
    x = 8,264,180,462.27/87,597.93
  6. Step 6: Final answer
    x = 94,342.19

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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.