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Finding the Fourth Proportional to 220,963.95, 304,919.44 and 125,468.60

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Solution

The fourth proportional to 220,963.95, 304,919.44 and 125,468.60 is: 173,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,963.95 : 304,919.44 = 125,468.60 : x
  2. Step 2: Convert to fraction form
    220,963.95/304,919.44 = 125,468.60/x
  3. Step 3: Cross multiply
    220,963.95x = 304,919.44 × 125,468.60
  4. Step 4: Simplify right side
    220,963.95x = 38,257,813,411.32
  5. Step 5: Solve for x
    x = 38,257,813,411.32/220,963.95
  6. Step 6: Final answer
    x = 173,140.52

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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.