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Finding the Fourth Proportional to 158,940.64, 238,410.96 and 40,612.24

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Solution

The fourth proportional to 158,940.64, 238,410.96 and 40,612.24 is: 60,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,940.64 : 238,410.96 = 40,612.24 : x
  2. Step 2: Convert to fraction form
    158,940.64/238,410.96 = 40,612.24/x
  3. Step 3: Cross multiply
    158,940.64x = 238,410.96 × 40,612.24
  4. Step 4: Simplify right side
    158,940.64x = 9,682,403,126.15
  5. Step 5: Solve for x
    x = 9,682,403,126.15/158,940.64
  6. Step 6: Final answer
    x = 60,918.36

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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.