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Finding the Fourth Proportional to 73,863.18, 101,931.30 and 40,329.18

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Solution

The fourth proportional to 73,863.18, 101,931.30 and 40,329.18 is: 55,654.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,863.18 : 101,931.30 = 40,329.18 : x
  2. Step 2: Convert to fraction form
    73,863.18/101,931.30 = 40,329.18/x
  3. Step 3: Cross multiply
    73,863.18x = 101,931.30 × 40,329.18
  4. Step 4: Simplify right side
    73,863.18x = 4,110,805,745.33
  5. Step 5: Solve for x
    x = 4,110,805,745.33/73,863.18
  6. Step 6: Final answer
    x = 55,654.33

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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.