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Finding the Fourth Proportional to 343,273.44, 514,978.20 and 132,913.20

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Solution

The fourth proportional to 343,273.44, 514,978.20 and 132,913.20 is: 199,396.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,273.44 : 514,978.20 = 132,913.20 : x
  2. Step 2: Convert to fraction form
    343,273.44/514,978.20 = 132,913.20/x
  3. Step 3: Cross multiply
    343,273.44x = 514,978.20 × 132,913.20
  4. Step 4: Simplify right side
    343,273.44x = 68,447,400,492.24
  5. Step 5: Solve for x
    x = 68,447,400,492.24/343,273.44
  6. Step 6: Final answer
    x = 199,396.14

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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.