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Finding the Fourth Proportional to 139,323.70, 192,325.57 and 94,063.00

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Solution

The fourth proportional to 139,323.70, 192,325.57 and 94,063.00 is: 129,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,323.70 : 192,325.57 = 94,063.00 : x
  2. Step 2: Convert to fraction form
    139,323.70/192,325.57 = 94,063.00/x
  3. Step 3: Cross multiply
    139,323.70x = 192,325.57 × 94,063.00
  4. Step 4: Simplify right side
    139,323.70x = 18,090,718,894.12
  5. Step 5: Solve for x
    x = 18,090,718,894.12/139,323.70
  6. Step 6: Final answer
    x = 129,846.68

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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.