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Finding the Fourth Proportional to 73,912.14, 101,999.07 and 40,378.86

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Solution

The fourth proportional to 73,912.14, 101,999.07 and 40,378.86 is: 55,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,912.14 : 101,999.07 = 40,378.86 : x
  2. Step 2: Convert to fraction form
    73,912.14/101,999.07 = 40,378.86/x
  3. Step 3: Cross multiply
    73,912.14x = 101,999.07 × 40,378.86
  4. Step 4: Simplify right side
    73,912.14x = 4,118,606,167.66
  5. Step 5: Solve for x
    x = 4,118,606,167.66/73,912.14
  6. Step 6: Final answer
    x = 55,723.00

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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.