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Finding the Fourth Proportional to 73,889.25, 101,967.17 and 40,355.25

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Solution

The fourth proportional to 73,889.25, 101,967.17 and 40,355.25 is: 55,690.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,889.25 : 101,967.17 = 40,355.25 : x
  2. Step 2: Convert to fraction form
    73,889.25/101,967.17 = 40,355.25/x
  3. Step 3: Cross multiply
    73,889.25x = 101,967.17 × 40,355.25
  4. Step 4: Simplify right side
    73,889.25x = 4,114,910,435.37
  5. Step 5: Solve for x
    x = 4,114,910,435.37/73,889.25
  6. Step 6: Final answer
    x = 55,690.25

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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.