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Finding the Fourth Proportional to 370,188.56, 555,282.92 and 133,531.22

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Solution

The fourth proportional to 370,188.56, 555,282.92 and 133,531.22 is: 200,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,188.56 : 555,282.92 = 133,531.22 : x
  2. Step 2: Convert to fraction form
    370,188.56/555,282.92 = 133,531.22/x
  3. Step 3: Cross multiply
    370,188.56x = 555,282.92 × 133,531.22
  4. Step 4: Simplify right side
    370,188.56x = 74,147,603,975.77
  5. Step 5: Solve for x
    x = 74,147,603,975.77/370,188.56
  6. Step 6: Final answer
    x = 200,296.85

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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.