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Finding the Fourth Proportional to 136,433.62, 204,272.56 and 69,730.12

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Solution

The fourth proportional to 136,433.62, 204,272.56 and 69,730.12 is: 104,402.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,433.62 : 204,272.56 = 69,730.12 : x
  2. Step 2: Convert to fraction form
    136,433.62/204,272.56 = 69,730.12/x
  3. Step 3: Cross multiply
    136,433.62x = 204,272.56 × 69,730.12
  4. Step 4: Simplify right side
    136,433.62x = 14,243,950,121.51
  5. Step 5: Solve for x
    x = 14,243,950,121.51/136,433.62
  6. Step 6: Final answer
    x = 104,402.05

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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.