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Finding the Fourth Proportional to 135,952.71, 203,949.81 and 69,356.52

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Solution

The fourth proportional to 135,952.71, 203,949.81 and 69,356.52 is: 104,045.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,952.71 : 203,949.81 = 69,356.52 : x
  2. Step 2: Convert to fraction form
    135,952.71/203,949.81 = 69,356.52/x
  3. Step 3: Cross multiply
    135,952.71x = 203,949.81 × 69,356.52
  4. Step 4: Simplify right side
    135,952.71x = 14,145,249,076.26
  5. Step 5: Solve for x
    x = 14,145,249,076.26/135,952.71
  6. Step 6: Final answer
    x = 104,045.36

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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.