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Finding the Fourth Proportional to 567,192.84, 850,805.76 and 212,139.12

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Solution

The fourth proportional to 567,192.84, 850,805.76 and 212,139.12 is: 318,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,192.84 : 850,805.76 = 212,139.12 : x
  2. Step 2: Convert to fraction form
    567,192.84/850,805.76 = 212,139.12/x
  3. Step 3: Cross multiply
    567,192.84x = 850,805.76 × 212,139.12
  4. Step 4: Simplify right side
    567,192.84x = 180,489,185,217.33
  5. Step 5: Solve for x
    x = 180,489,185,217.33/567,192.84
  6. Step 6: Final answer
    x = 318,214.85

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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.