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Finding the Fourth Proportional to 144,588.88, 199,532.61 and 80,926.66

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Solution

The fourth proportional to 144,588.88, 199,532.61 and 80,926.66 is: 111,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,588.88 : 199,532.61 = 80,926.66 : x
  2. Step 2: Convert to fraction form
    144,588.88/199,532.61 = 80,926.66/x
  3. Step 3: Cross multiply
    144,588.88x = 199,532.61 × 80,926.66
  4. Step 4: Simplify right side
    144,588.88x = 16,147,507,688.38
  5. Step 5: Solve for x
    x = 16,147,507,688.38/144,588.88
  6. Step 6: Final answer
    x = 111,678.77

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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.