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Finding the Fourth Proportional to 73,334.78, 101,202.05 and 39,800.78

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Solution

The fourth proportional to 73,334.78, 101,202.05 and 39,800.78 is: 54,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,334.78 : 101,202.05 = 39,800.78 : x
  2. Step 2: Convert to fraction form
    73,334.78/101,202.05 = 39,800.78/x
  3. Step 3: Cross multiply
    73,334.78x = 101,202.05 × 39,800.78
  4. Step 4: Simplify right side
    73,334.78x = 4,027,920,581.60
  5. Step 5: Solve for x
    x = 4,027,920,581.60/73,334.78
  6. Step 6: Final answer
    x = 54,925.10

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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.