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Finding the Fourth Proportional to 55,368.45, 83,012.45 and 22,078.53

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Solution

The fourth proportional to 55,368.45, 83,012.45 and 22,078.53 is: 33,101.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,368.45 : 83,012.45 = 22,078.53 : x
  2. Step 2: Convert to fraction form
    55,368.45/83,012.45 = 22,078.53/x
  3. Step 3: Cross multiply
    55,368.45x = 83,012.45 × 22,078.53
  4. Step 4: Simplify right side
    55,368.45x = 1,832,792,757.31
  5. Step 5: Solve for x
    x = 1,832,792,757.31/55,368.45
  6. Step 6: Final answer
    x = 33,101.75

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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.