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Finding the Fourth Proportional to 73,647.80, 101,645.51 and 43,436.45

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Solution

The fourth proportional to 73,647.80, 101,645.51 and 43,436.45 is: 59,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,647.80 : 101,645.51 = 43,436.45 : x
  2. Step 2: Convert to fraction form
    73,647.80/101,645.51 = 43,436.45/x
  3. Step 3: Cross multiply
    73,647.80x = 101,645.51 × 43,436.45
  4. Step 4: Simplify right side
    73,647.80x = 4,415,120,112.84
  5. Step 5: Solve for x
    x = 4,415,120,112.84/73,647.80
  6. Step 6: Final answer
    x = 59,949.11

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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.