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Finding the Fourth Proportional to 144,469.80, 199,423.62 and 87,877.80

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Solution

The fourth proportional to 144,469.80, 199,423.62 and 87,877.80 is: 121,305.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,469.80 : 199,423.62 = 87,877.80 : x
  2. Step 2: Convert to fraction form
    144,469.80/199,423.62 = 87,877.80/x
  3. Step 3: Cross multiply
    144,469.80x = 199,423.62 × 87,877.80
  4. Step 4: Simplify right side
    144,469.80x = 17,524,908,993.64
  5. Step 5: Solve for x
    x = 17,524,908,993.64/144,469.80
  6. Step 6: Final answer
    x = 121,305.00

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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.