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Finding the Fourth Proportional to 67,177.86, 92,695.66 and 40,314.66

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Solution

The fourth proportional to 67,177.86, 92,695.66 and 40,314.66 is: 55,628.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,177.86 : 92,695.66 = 40,314.66 : x
  2. Step 2: Convert to fraction form
    67,177.86/92,695.66 = 40,314.66/x
  3. Step 3: Cross multiply
    67,177.86x = 92,695.66 × 40,314.66
  4. Step 4: Simplify right side
    67,177.86x = 3,736,994,016.38
  5. Step 5: Solve for x
    x = 3,736,994,016.38/67,177.86
  6. Step 6: Final answer
    x = 55,628.36

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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.