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Finding the Fourth Proportional to 353,672.28, 530,605.56 and 104,354.28

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Solution

The fourth proportional to 353,672.28, 530,605.56 and 104,354.28 is: 156,560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,672.28 : 530,605.56 = 104,354.28 : x
  2. Step 2: Convert to fraction form
    353,672.28/530,605.56 = 104,354.28/x
  3. Step 3: Cross multiply
    353,672.28x = 530,605.56 × 104,354.28
  4. Step 4: Simplify right side
    353,672.28x = 55,370,961,177.80
  5. Step 5: Solve for x
    x = 55,370,961,177.80/353,672.28
  6. Step 6: Final answer
    x = 156,560.08

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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.