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Finding the Fourth Proportional to 113,451, 170,254.26 and 39,579

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Solution

The fourth proportional to 113,451, 170,254.26 and 39,579 is: 59,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,451 : 170,254.26 = 39,579 : x
  2. Step 2: Convert to fraction form
    113,451/170,254.26 = 39,579/x
  3. Step 3: Cross multiply
    113,451x = 170,254.26 × 39,579
  4. Step 4: Simplify right side
    113,451x = 6,738,493,356.54
  5. Step 5: Solve for x
    x = 6,738,493,356.54/113,451
  6. Step 6: Final answer
    x = 59,395.63

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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.