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Finding the Fourth Proportional to 136,039.01, 204,079.64 and 69,443.10

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Solution

The fourth proportional to 136,039.01, 204,079.64 and 69,443.10 is: 104,175.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,039.01 : 204,079.64 = 69,443.10 : x
  2. Step 2: Convert to fraction form
    136,039.01/204,079.64 = 69,443.10/x
  3. Step 3: Cross multiply
    136,039.01x = 204,079.64 × 69,443.10
  4. Step 4: Simplify right side
    136,039.01x = 14,171,922,501.27
  5. Step 5: Solve for x
    x = 14,171,922,501.27/136,039.01
  6. Step 6: Final answer
    x = 104,175.43

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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.