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Finding the Fourth Proportional to 101,350.76, 139,863.96 and 61,066.22

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Solution

The fourth proportional to 101,350.76, 139,863.96 and 61,066.22 is: 84,271.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,350.76 : 139,863.96 = 61,066.22 : x
  2. Step 2: Convert to fraction form
    101,350.76/139,863.96 = 61,066.22/x
  3. Step 3: Cross multiply
    101,350.76x = 139,863.96 × 61,066.22
  4. Step 4: Simplify right side
    101,350.76x = 8,540,963,351.43
  5. Step 5: Solve for x
    x = 8,540,963,351.43/101,350.76
  6. Step 6: Final answer
    x = 84,271.33

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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.