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Finding the Fourth Proportional to 421,338.36, 632,118.06 and 151,493.52

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Solution

The fourth proportional to 421,338.36, 632,118.06 and 151,493.52 is: 227,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,338.36 : 632,118.06 = 151,493.52 : x
  2. Step 2: Convert to fraction form
    421,338.36/632,118.06 = 151,493.52/x
  3. Step 3: Cross multiply
    421,338.36x = 632,118.06 × 151,493.52
  4. Step 4: Simplify right side
    421,338.36x = 95,761,789,964.97
  5. Step 5: Solve for x
    x = 95,761,789,964.97/421,338.36
  6. Step 6: Final answer
    x = 227,280.02

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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.