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Finding the Fourth Proportional to 139,194.95, 192,092.72 and 75,532.77

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Solution

The fourth proportional to 139,194.95, 192,092.72 and 75,532.77 is: 104,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,194.95 : 192,092.72 = 75,532.77 : x
  2. Step 2: Convert to fraction form
    139,194.95/192,092.72 = 75,532.77/x
  3. Step 3: Cross multiply
    139,194.95x = 192,092.72 × 75,532.77
  4. Step 4: Simplify right side
    139,194.95x = 14,509,294,860.77
  5. Step 5: Solve for x
    x = 14,509,294,860.77/139,194.95
  6. Step 6: Final answer
    x = 104,237.23

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1.5x scale

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.