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Finding the Fourth Proportional to 135,046.40, 202,569.60 and 133,078.10

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Solution

The fourth proportional to 135,046.40, 202,569.60 and 133,078.10 is: 199,617.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,046.40 : 202,569.60 = 133,078.10 : x
  2. Step 2: Convert to fraction form
    135,046.40/202,569.60 = 133,078.10/x
  3. Step 3: Cross multiply
    135,046.40x = 202,569.60 × 133,078.10
  4. Step 4: Simplify right side
    135,046.40x = 26,957,577,485.76
  5. Step 5: Solve for x
    x = 26,957,577,485.76/135,046.40
  6. Step 6: Final answer
    x = 199,617.15

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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.