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Finding the Fourth Proportional to 474,135.21, 711,123.44 and 158,591.07

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Solution

The fourth proportional to 474,135.21, 711,123.44 and 158,591.07 is: 237,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,135.21 : 711,123.44 = 158,591.07 : x
  2. Step 2: Convert to fraction form
    474,135.21/711,123.44 = 158,591.07/x
  3. Step 3: Cross multiply
    474,135.21x = 711,123.44 × 158,591.07
  4. Step 4: Simplify right side
    474,135.21x = 112,777,826,458.73
  5. Step 5: Solve for x
    x = 112,777,826,458.73/474,135.21
  6. Step 6: Final answer
    x = 237,860.05

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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.