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Finding the Fourth Proportional to 101,281.52, 139,766.04 and 55,963.84

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Solution

The fourth proportional to 101,281.52, 139,766.04 and 55,963.84 is: 77,228.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,281.52 : 139,766.04 = 55,963.84 : x
  2. Step 2: Convert to fraction form
    101,281.52/139,766.04 = 55,963.84/x
  3. Step 3: Cross multiply
    101,281.52x = 139,766.04 × 55,963.84
  4. Step 4: Simplify right side
    101,281.52x = 7,821,844,299.99
  5. Step 5: Solve for x
    x = 7,821,844,299.99/101,281.52
  6. Step 6: Final answer
    x = 77,228.74

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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.