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Finding the Fourth Proportional to 74,158.77, 111,160.79 and 36,695.46

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Solution

The fourth proportional to 74,158.77, 111,160.79 and 36,695.46 is: 55,004.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,158.77 : 111,160.79 = 36,695.46 : x
  2. Step 2: Convert to fraction form
    74,158.77/111,160.79 = 36,695.46/x
  3. Step 3: Cross multiply
    74,158.77x = 111,160.79 × 36,695.46
  4. Step 4: Simplify right side
    74,158.77x = 4,079,096,139.54
  5. Step 5: Solve for x
    x = 4,079,096,139.54/74,158.77
  6. Step 6: Final answer
    x = 55,004.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.