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Finding the Fourth Proportional to 104,390.36, 144,064.14 and 68,601.32

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Solution

The fourth proportional to 104,390.36, 144,064.14 and 68,601.32 is: 94,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,390.36 : 144,064.14 = 68,601.32 : x
  2. Step 2: Convert to fraction form
    104,390.36/144,064.14 = 68,601.32/x
  3. Step 3: Cross multiply
    104,390.36x = 144,064.14 × 68,601.32
  4. Step 4: Simplify right side
    104,390.36x = 9,882,990,168.66
  5. Step 5: Solve for x
    x = 9,882,990,168.66/104,390.36
  6. Step 6: Final answer
    x = 94,673.40

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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.