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Finding the Fourth Proportional to 73,722.71, 101,737.09 and 40,188.71

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Solution

The fourth proportional to 73,722.71, 101,737.09 and 40,188.71 is: 55,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,722.71 : 101,737.09 = 40,188.71 : x
  2. Step 2: Convert to fraction form
    73,722.71/101,737.09 = 40,188.71/x
  3. Step 3: Cross multiply
    73,722.71x = 101,737.09 × 40,188.71
  4. Step 4: Simplify right side
    73,722.71x = 4,088,682,406.25
  5. Step 5: Solve for x
    x = 4,088,682,406.25/73,722.71
  6. Step 6: Final answer
    x = 55,460.28

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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.