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Finding the Fourth Proportional to 77,339.73, 106,737.66 and 43,357.38

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Solution

The fourth proportional to 77,339.73, 106,737.66 and 43,357.38 is: 59,838.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,339.73 : 106,737.66 = 43,357.38 : x
  2. Step 2: Convert to fraction form
    77,339.73/106,737.66 = 43,357.38/x
  3. Step 3: Cross multiply
    77,339.73x = 106,737.66 × 43,357.38
  4. Step 4: Simplify right side
    77,339.73x = 4,627,865,284.93
  5. Step 5: Solve for x
    x = 4,627,865,284.93/77,339.73
  6. Step 6: Final answer
    x = 59,838.14

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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.