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Finding the Fourth Proportional to 144,561.70, 199,490.86 and 80,033.81

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Solution

The fourth proportional to 144,561.70, 199,490.86 and 80,033.81 is: 110,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,561.70 : 199,490.86 = 80,033.81 : x
  2. Step 2: Convert to fraction form
    144,561.70/199,490.86 = 80,033.81/x
  3. Step 3: Cross multiply
    144,561.70x = 199,490.86 × 80,033.81
  4. Step 4: Simplify right side
    144,561.70x = 15,966,013,585.98
  5. Step 5: Solve for x
    x = 15,966,013,585.98/144,561.70
  6. Step 6: Final answer
    x = 110,444.28

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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.