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Finding the Fourth Proportional to 139,869.32, 192,866.91 and 94,468.49

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Solution

The fourth proportional to 139,869.32, 192,866.91 and 94,468.49 is: 130,263.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,869.32 : 192,866.91 = 94,468.49 : x
  2. Step 2: Convert to fraction form
    139,869.32/192,866.91 = 94,468.49/x
  3. Step 3: Cross multiply
    139,869.32x = 192,866.91 × 94,468.49
  4. Step 4: Simplify right side
    139,869.32x = 18,219,844,794.33
  5. Step 5: Solve for x
    x = 18,219,844,794.33/139,869.32
  6. Step 6: Final answer
    x = 130,263.34

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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.