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Finding the Fourth Proportional to 98,268, 135,631.74 and 62,451

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Solution

The fourth proportional to 98,268, 135,631.74 and 62,451 is: 86,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,268 : 135,631.74 = 62,451 : x
  2. Step 2: Convert to fraction form
    98,268/135,631.74 = 62,451/x
  3. Step 3: Cross multiply
    98,268x = 135,631.74 × 62,451
  4. Step 4: Simplify right side
    98,268x = 8,470,337,794.74
  5. Step 5: Solve for x
    x = 8,470,337,794.74/98,268
  6. Step 6: Final answer
    x = 86,196.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.