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Finding the Fourth Proportional to 73,442.50, 101,351.46 and 39,908.50

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Solution

The fourth proportional to 73,442.50, 101,351.46 and 39,908.50 is: 55,074.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,442.50 : 101,351.46 = 39,908.50 : x
  2. Step 2: Convert to fraction form
    73,442.50/101,351.46 = 39,908.50/x
  3. Step 3: Cross multiply
    73,442.50x = 101,351.46 × 39,908.50
  4. Step 4: Simplify right side
    73,442.50x = 4,044,784,741.41
  5. Step 5: Solve for x
    x = 4,044,784,741.41/73,442.50
  6. Step 6: Final answer
    x = 55,074.17

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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.