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Finding the Fourth Proportional to 73,678.03, 101,675.69 and 40,144.03

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Solution

The fourth proportional to 73,678.03, 101,675.69 and 40,144.03 is: 55,398.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,678.03 : 101,675.69 = 40,144.03 : x
  2. Step 2: Convert to fraction form
    73,678.03/101,675.69 = 40,144.03/x
  3. Step 3: Cross multiply
    73,678.03x = 101,675.69 × 40,144.03
  4. Step 4: Simplify right side
    73,678.03x = 4,081,671,876.01
  5. Step 5: Solve for x
    x = 4,081,671,876.01/73,678.03
  6. Step 6: Final answer
    x = 55,398.76

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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.