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Finding the Fourth Proportional to 353,810.25, 530,715.38 and 104,511.69

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Solution

The fourth proportional to 353,810.25, 530,715.38 and 104,511.69 is: 156,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,810.25 : 530,715.38 = 104,511.69 : x
  2. Step 2: Convert to fraction form
    353,810.25/530,715.38 = 104,511.69/x
  3. Step 3: Cross multiply
    353,810.25x = 530,715.38 × 104,511.69
  4. Step 4: Simplify right side
    353,810.25x = 55,465,960,750.23
  5. Step 5: Solve for x
    x = 55,465,960,750.23/353,810.25
  6. Step 6: Final answer
    x = 156,767.54

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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.