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Finding the Fourth Proportional to 353,375.83, 530,069.37 and 87,136.44

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Solution

The fourth proportional to 353,375.83, 530,069.37 and 87,136.44 is: 130,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,375.83 : 530,069.37 = 87,136.44 : x
  2. Step 2: Convert to fraction form
    353,375.83/530,069.37 = 87,136.44/x
  3. Step 3: Cross multiply
    353,375.83x = 530,069.37 × 87,136.44
  4. Step 4: Simplify right side
    353,375.83x = 46,188,357,854.84
  5. Step 5: Solve for x
    x = 46,188,357,854.84/353,375.83
  6. Step 6: Final answer
    x = 130,706.05

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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.