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Finding the Fourth Proportional to 139,535.84, 192,559.02 and 75,873.80

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Solution

The fourth proportional to 139,535.84, 192,559.02 and 75,873.80 is: 104,705.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,535.84 : 192,559.02 = 75,873.80 : x
  2. Step 2: Convert to fraction form
    139,535.84/192,559.02 = 75,873.80/x
  3. Step 3: Cross multiply
    139,535.84x = 192,559.02 × 75,873.80
  4. Step 4: Simplify right side
    139,535.84x = 14,610,184,571.68
  5. Step 5: Solve for x
    x = 14,610,184,571.68/139,535.84
  6. Step 6: Final answer
    x = 104,705.61

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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.