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Finding the Fourth Proportional to 73,442.75, 101,351.04 and 39,908.75

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Solution

The fourth proportional to 73,442.75, 101,351.04 and 39,908.75 is: 55,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,442.75 : 101,351.04 = 39,908.75 : x
  2. Step 2: Convert to fraction form
    73,442.75/101,351.04 = 39,908.75/x
  3. Step 3: Cross multiply
    73,442.75x = 101,351.04 × 39,908.75
  4. Step 4: Simplify right side
    73,442.75x = 4,044,793,317.60
  5. Step 5: Solve for x
    x = 4,044,793,317.60/73,442.75
  6. Step 6: Final answer
    x = 55,074.10

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1.5x scale

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.