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Finding the Fourth Proportional to 68,194.80, 94,108.84 and 37,985.92

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Solution

The fourth proportional to 68,194.80, 94,108.84 and 37,985.92 is: 52,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,194.80 : 94,108.84 = 37,985.92 : x
  2. Step 2: Convert to fraction form
    68,194.80/94,108.84 = 37,985.92/x
  3. Step 3: Cross multiply
    68,194.80x = 94,108.84 × 37,985.92
  4. Step 4: Simplify right side
    68,194.80x = 3,574,810,867.53
  5. Step 5: Solve for x
    x = 3,574,810,867.53/68,194.80
  6. Step 6: Final answer
    x = 52,420.58

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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.