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Finding the Fourth Proportional to 144,426.81, 199,305.28 and 79,894.37

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Solution

The fourth proportional to 144,426.81, 199,305.28 and 79,894.37 is: 110,252.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,426.81 : 199,305.28 = 79,894.37 : x
  2. Step 2: Convert to fraction form
    144,426.81/199,305.28 = 79,894.37/x
  3. Step 3: Cross multiply
    144,426.81x = 199,305.28 × 79,894.37
  4. Step 4: Simplify right side
    144,426.81x = 15,923,368,810.91
  5. Step 5: Solve for x
    x = 15,923,368,810.91/144,426.81
  6. Step 6: Final answer
    x = 110,252.16

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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.