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Finding the Fourth Proportional to 139,296.84, 192,224.25 and 75,633.18

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Solution

The fourth proportional to 139,296.84, 192,224.25 and 75,633.18 is: 104,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,296.84 : 192,224.25 = 75,633.18 : x
  2. Step 2: Convert to fraction form
    139,296.84/192,224.25 = 75,633.18/x
  3. Step 3: Cross multiply
    139,296.84x = 192,224.25 × 75,633.18
  4. Step 4: Simplify right side
    139,296.84x = 14,538,531,300.62
  5. Step 5: Solve for x
    x = 14,538,531,300.62/139,296.84
  6. Step 6: Final answer
    x = 104,370.86

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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.