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Finding the Fourth Proportional to 139,297.39, 192,225.01 and 75,633.73

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Solution

The fourth proportional to 139,297.39, 192,225.01 and 75,633.73 is: 104,371.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,297.39 : 192,225.01 = 75,633.73 : x
  2. Step 2: Convert to fraction form
    139,297.39/192,225.01 = 75,633.73/x
  3. Step 3: Cross multiply
    139,297.39x = 192,225.01 × 75,633.73
  4. Step 4: Simplify right side
    139,297.39x = 14,538,693,166.29
  5. Step 5: Solve for x
    x = 14,538,693,166.29/139,297.39
  6. Step 6: Final answer
    x = 104,371.62

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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.