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Finding the Fourth Proportional to 73,813.80, 101,865.42 and 41,981.88

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Solution

The fourth proportional to 73,813.80, 101,865.42 and 41,981.88 is: 57,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,813.80 : 101,865.42 = 41,981.88 : x
  2. Step 2: Convert to fraction form
    73,813.80/101,865.42 = 41,981.88/x
  3. Step 3: Cross multiply
    73,813.80x = 101,865.42 × 41,981.88
  4. Step 4: Simplify right side
    73,813.80x = 4,276,501,838.59
  5. Step 5: Solve for x
    x = 4,276,501,838.59/73,813.80
  6. Step 6: Final answer
    x = 57,936.35

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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.