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Finding the Fourth Proportional to 101,282.22, 139,757.31 and 55,957.41

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Solution

The fourth proportional to 101,282.22, 139,757.31 and 55,957.41 is: 77,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,282.22 : 139,757.31 = 55,957.41 : x
  2. Step 2: Convert to fraction form
    101,282.22/139,757.31 = 55,957.41/x
  3. Step 3: Cross multiply
    101,282.22x = 139,757.31 × 55,957.41
  4. Step 4: Simplify right side
    101,282.22x = 7,820,457,096.17
  5. Step 5: Solve for x
    x = 7,820,457,096.17/101,282.22
  6. Step 6: Final answer
    x = 77,214.51

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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.