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Finding the Fourth Proportional to 73,399.95, 101,292.44 and 39,865.95

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Solution

The fourth proportional to 73,399.95, 101,292.44 and 39,865.95 is: 55,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,399.95 : 101,292.44 = 39,865.95 : x
  2. Step 2: Convert to fraction form
    73,399.95/101,292.44 = 39,865.95/x
  3. Step 3: Cross multiply
    73,399.95x = 101,292.44 × 39,865.95
  4. Step 4: Simplify right side
    73,399.95x = 4,038,119,348.42
  5. Step 5: Solve for x
    x = 4,038,119,348.42/73,399.95
  6. Step 6: Final answer
    x = 55,015.29

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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.