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Finding the Fourth Proportional to 349,861.62, 524,459.88 and 136,766.22

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Solution

The fourth proportional to 349,861.62, 524,459.88 and 136,766.22 is: 205,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,861.62 : 524,459.88 = 136,766.22 : x
  2. Step 2: Convert to fraction form
    349,861.62/524,459.88 = 136,766.22/x
  3. Step 3: Cross multiply
    349,861.62x = 524,459.88 × 136,766.22
  4. Step 4: Simplify right side
    349,861.62x = 71,728,395,329.25
  5. Step 5: Solve for x
    x = 71,728,395,329.25/349,861.62
  6. Step 6: Final answer
    x = 205,019.33

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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.