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Finding the Fourth Proportional to 125,653.66, 188,544.27 and 83,563.02

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Solution

The fourth proportional to 125,653.66, 188,544.27 and 83,563.02 is: 125,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,653.66 : 188,544.27 = 83,563.02 : x
  2. Step 2: Convert to fraction form
    125,653.66/188,544.27 = 83,563.02/x
  3. Step 3: Cross multiply
    125,653.66x = 188,544.27 × 83,563.02
  4. Step 4: Simplify right side
    125,653.66x = 15,755,328,604.90
  5. Step 5: Solve for x
    x = 15,755,328,604.90/125,653.66
  6. Step 6: Final answer
    x = 125,386.95

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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.