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Finding the Fourth Proportional to 73,645.80, 101,642.75 and 43,434.45

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Solution

The fourth proportional to 73,645.80, 101,642.75 and 43,434.45 is: 59,946.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,645.80 : 101,642.75 = 43,434.45 : x
  2. Step 2: Convert to fraction form
    73,645.80/101,642.75 = 43,434.45/x
  3. Step 3: Cross multiply
    73,645.80x = 101,642.75 × 43,434.45
  4. Step 4: Simplify right side
    73,645.80x = 4,414,796,217.35
  5. Step 5: Solve for x
    x = 4,414,796,217.35/73,645.80
  6. Step 6: Final answer
    x = 59,946.34

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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.