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Finding the Fourth Proportional to 192,947.94, 266,206.14 and 125,017.20

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Solution

The fourth proportional to 192,947.94, 266,206.14 and 125,017.20 is: 172,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,947.94 : 266,206.14 = 125,017.20 : x
  2. Step 2: Convert to fraction form
    192,947.94/266,206.14 = 125,017.20/x
  3. Step 3: Cross multiply
    192,947.94x = 266,206.14 × 125,017.20
  4. Step 4: Simplify right side
    192,947.94x = 33,280,346,245.61
  5. Step 5: Solve for x
    x = 33,280,346,245.61/192,947.94
  6. Step 6: Final answer
    x = 172,483.55

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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.