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Finding the Fourth Proportional to 361,112.81, 541,419.53 and 158,611.19

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Solution

The fourth proportional to 361,112.81, 541,419.53 and 158,611.19 is: 237,807.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,112.81 : 541,419.53 = 158,611.19 : x
  2. Step 2: Convert to fraction form
    361,112.81/541,419.53 = 158,611.19/x
  3. Step 3: Cross multiply
    361,112.81x = 541,419.53 × 158,611.19
  4. Step 4: Simplify right side
    361,112.81x = 85,875,192,442.39
  5. Step 5: Solve for x
    x = 85,875,192,442.39/361,112.81
  6. Step 6: Final answer
    x = 237,807.11

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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.