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Finding the Fourth Proportional to 158,847.64, 238,201.48 and 74,631.74

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Solution

The fourth proportional to 158,847.64, 238,201.48 and 74,631.74 is: 111,914.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,847.64 : 238,201.48 = 74,631.74 : x
  2. Step 2: Convert to fraction form
    158,847.64/238,201.48 = 74,631.74/x
  3. Step 3: Cross multiply
    158,847.64x = 238,201.48 × 74,631.74
  4. Step 4: Simplify right side
    158,847.64x = 17,777,390,922.98
  5. Step 5: Solve for x
    x = 17,777,390,922.98/158,847.64
  6. Step 6: Final answer
    x = 111,914.73

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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.