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Finding the Fourth Proportional to 124,076.95, 186,198.80 and 123,620.41

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Solution

The fourth proportional to 124,076.95, 186,198.80 and 123,620.41 is: 185,513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,076.95 : 186,198.80 = 123,620.41 : x
  2. Step 2: Convert to fraction form
    124,076.95/186,198.80 = 123,620.41/x
  3. Step 3: Cross multiply
    124,076.95x = 186,198.80 × 123,620.41
  4. Step 4: Simplify right side
    124,076.95x = 23,017,972,307.52
  5. Step 5: Solve for x
    x = 23,017,972,307.52/124,076.95
  6. Step 6: Final answer
    x = 185,513.69

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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.