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Finding the Fourth Proportional to 139,735.54, 192,834.99 and 76,073.32

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Solution

The fourth proportional to 139,735.54, 192,834.99 and 76,073.32 is: 104,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,735.54 : 192,834.99 = 76,073.32 : x
  2. Step 2: Convert to fraction form
    139,735.54/192,834.99 = 76,073.32/x
  3. Step 3: Cross multiply
    139,735.54x = 192,834.99 × 76,073.32
  4. Step 4: Simplify right side
    139,735.54x = 14,669,597,901.47
  5. Step 5: Solve for x
    x = 14,669,597,901.47/139,735.54
  6. Step 6: Final answer
    x = 104,981.15

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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.