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Finding the Fourth Proportional to 73,669.72, 101,729.14 and 54,774.04

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Solution

The fourth proportional to 73,669.72, 101,729.14 and 54,774.04 is: 75,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,669.72 : 101,729.14 = 54,774.04 : x
  2. Step 2: Convert to fraction form
    73,669.72/101,729.14 = 54,774.04/x
  3. Step 3: Cross multiply
    73,669.72x = 101,729.14 × 54,774.04
  4. Step 4: Simplify right side
    73,669.72x = 5,572,115,983.53
  5. Step 5: Solve for x
    x = 5,572,115,983.53/73,669.72
  6. Step 6: Final answer
    x = 75,636.45

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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.