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Finding the Fourth Proportional to 158,379.60, 237,238.20 and 74,211.60

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Solution

The fourth proportional to 158,379.60, 237,238.20 and 74,211.60 is: 111,162.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,379.60 : 237,238.20 = 74,211.60 : x
  2. Step 2: Convert to fraction form
    158,379.60/237,238.20 = 74,211.60/x
  3. Step 3: Cross multiply
    158,379.60x = 237,238.20 × 74,211.60
  4. Step 4: Simplify right side
    158,379.60x = 17,605,826,403.12
  5. Step 5: Solve for x
    x = 17,605,826,403.12/158,379.60
  6. Step 6: Final answer
    x = 111,162.21

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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.