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Finding the Fourth Proportional to 136,742.41, 205,137.69 and 46,763.97

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Solution

The fourth proportional to 136,742.41, 205,137.69 and 46,763.97 is: 70,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,742.41 : 205,137.69 = 46,763.97 : x
  2. Step 2: Convert to fraction form
    136,742.41/205,137.69 = 46,763.97/x
  3. Step 3: Cross multiply
    136,742.41x = 205,137.69 × 46,763.97
  4. Step 4: Simplify right side
    136,742.41x = 9,593,052,781.03
  5. Step 5: Solve for x
    x = 9,593,052,781.03/136,742.41
  6. Step 6: Final answer
    x = 70,154.19

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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.