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Finding the Fourth Proportional to 353,638.62, 530,405.28 and 116,982.54

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Solution

The fourth proportional to 353,638.62, 530,405.28 and 116,982.54 is: 175,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,638.62 : 530,405.28 = 116,982.54 : x
  2. Step 2: Convert to fraction form
    353,638.62/530,405.28 = 116,982.54/x
  3. Step 3: Cross multiply
    353,638.62x = 530,405.28 × 116,982.54
  4. Step 4: Simplify right side
    353,638.62x = 62,048,156,883.81
  5. Step 5: Solve for x
    x = 62,048,156,883.81/353,638.62
  6. Step 6: Final answer
    x = 175,456.39

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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.