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Finding the Fourth Proportional to 353,427.69, 530,190.82 and 113,548.87

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Solution

The fourth proportional to 353,427.69, 530,190.82 and 113,548.87 is: 170,339.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,427.69 : 530,190.82 = 113,548.87 : x
  2. Step 2: Convert to fraction form
    353,427.69/530,190.82 = 113,548.87/x
  3. Step 3: Cross multiply
    353,427.69x = 530,190.82 × 113,548.87
  4. Step 4: Simplify right side
    353,427.69x = 60,202,569,300.05
  5. Step 5: Solve for x
    x = 60,202,569,300.05/353,427.69
  6. Step 6: Final answer
    x = 170,339.14

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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.