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Finding the Fourth Proportional to 349,892.80, 524,968.80 and 113,243.20

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Solution

The fourth proportional to 349,892.80, 524,968.80 and 113,243.20 is: 169,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,892.80 : 524,968.80 = 113,243.20 : x
  2. Step 2: Convert to fraction form
    349,892.80/524,968.80 = 113,243.20/x
  3. Step 3: Cross multiply
    349,892.80x = 524,968.80 × 113,243.20
  4. Step 4: Simplify right side
    349,892.80x = 59,449,146,812.16
  5. Step 5: Solve for x
    x = 59,449,146,812.16/349,892.80
  6. Step 6: Final answer
    x = 169,906.75

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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.