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Finding the Fourth Proportional to 77,363.94, 106,760.16 and 43,373.82

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Solution

The fourth proportional to 77,363.94, 106,760.16 and 43,373.82 is: 59,854.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,363.94 : 106,760.16 = 43,373.82 : x
  2. Step 2: Convert to fraction form
    77,363.94/106,760.16 = 43,373.82/x
  3. Step 3: Cross multiply
    77,363.94x = 106,760.16 × 43,373.82
  4. Step 4: Simplify right side
    77,363.94x = 4,630,595,963.01
  5. Step 5: Solve for x
    x = 4,630,595,963.01/77,363.94
  6. Step 6: Final answer
    x = 59,854.71

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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.