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Finding the Fourth Proportional to 279,236.16, 419,029.20 and 113,024.16

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Solution

The fourth proportional to 279,236.16, 419,029.20 and 113,024.16 is: 169,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,236.16 : 419,029.20 = 113,024.16 : x
  2. Step 2: Convert to fraction form
    279,236.16/419,029.20 = 113,024.16/x
  3. Step 3: Cross multiply
    279,236.16x = 419,029.20 × 113,024.16
  4. Step 4: Simplify right side
    279,236.16x = 47,360,423,345.47
  5. Step 5: Solve for x
    x = 47,360,423,345.47/279,236.16
  6. Step 6: Final answer
    x = 169,607.06

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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.