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Finding the Fourth Proportional to 137,589.45, 192,391.95 and 137,589.45

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Solution

The fourth proportional to 137,589.45, 192,391.95 and 137,589.45 is: 192,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,589.45 : 192,391.95 = 137,589.45 : x
  2. Step 2: Convert to fraction form
    137,589.45/192,391.95 = 137,589.45/x
  3. Step 3: Cross multiply
    137,589.45x = 192,391.95 × 137,589.45
  4. Step 4: Simplify right side
    137,589.45x = 26,471,102,584.93
  5. Step 5: Solve for x
    x = 26,471,102,584.93/137,589.45
  6. Step 6: Final answer
    x = 192,391.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.