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Finding the Fourth Proportional to 98,258, 135,617.92 and 62,441.02

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Solution

The fourth proportional to 98,258, 135,617.92 and 62,441.02 is: 86,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,258 : 135,617.92 = 62,441.02 : x
  2. Step 2: Convert to fraction form
    98,258/135,617.92 = 62,441.02/x
  3. Step 3: Cross multiply
    98,258x = 135,617.92 × 62,441.02
  4. Step 4: Simplify right side
    98,258x = 8,468,121,255.08
  5. Step 5: Solve for x
    x = 8,468,121,255.08/98,258
  6. Step 6: Final answer
    x = 86,182.51

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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.