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Finding the Fourth Proportional to 192,887.66, 289,055.78 and 108,470.63

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Solution

The fourth proportional to 192,887.66, 289,055.78 and 108,470.63 is: 162,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,887.66 : 289,055.78 = 108,470.63 : x
  2. Step 2: Convert to fraction form
    192,887.66/289,055.78 = 108,470.63/x
  3. Step 3: Cross multiply
    192,887.66x = 289,055.78 × 108,470.63
  4. Step 4: Simplify right side
    192,887.66x = 31,354,060,574.11
  5. Step 5: Solve for x
    x = 31,354,060,574.11/192,887.66
  6. Step 6: Final answer
    x = 162,550.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.