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Finding the Fourth Proportional to 144,872.24, 199,923.03 and 81,210.02

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Solution

The fourth proportional to 144,872.24, 199,923.03 and 81,210.02 is: 112,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,872.24 : 199,923.03 = 81,210.02 : x
  2. Step 2: Convert to fraction form
    144,872.24/199,923.03 = 81,210.02/x
  3. Step 3: Cross multiply
    144,872.24x = 199,923.03 × 81,210.02
  4. Step 4: Simplify right side
    144,872.24x = 16,235,752,265.15
  5. Step 5: Solve for x
    x = 16,235,752,265.15/144,872.24
  6. Step 6: Final answer
    x = 112,069.45

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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.