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Finding the Fourth Proportional to 73,911.66, 101,998.54 and 40,377.66

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Solution

The fourth proportional to 73,911.66, 101,998.54 and 40,377.66 is: 55,721.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,911.66 : 101,998.54 = 40,377.66 : x
  2. Step 2: Convert to fraction form
    73,911.66/101,998.54 = 40,377.66/x
  3. Step 3: Cross multiply
    73,911.66x = 101,998.54 × 40,377.66
  4. Step 4: Simplify right side
    73,911.66x = 4,118,462,036.59
  5. Step 5: Solve for x
    x = 4,118,462,036.59/73,911.66
  6. Step 6: Final answer
    x = 55,721.41

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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.