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Finding the Fourth Proportional to 144,462.99, 199,353.89 and 79,931.21

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Solution

The fourth proportional to 144,462.99, 199,353.89 and 79,931.21 is: 110,302.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,462.99 : 199,353.89 = 79,931.21 : x
  2. Step 2: Convert to fraction form
    144,462.99/199,353.89 = 79,931.21/x
  3. Step 3: Cross multiply
    144,462.99x = 199,353.89 × 79,931.21
  4. Step 4: Simplify right side
    144,462.99x = 15,934,596,848.97
  5. Step 5: Solve for x
    x = 15,934,596,848.97/144,462.99
  6. Step 6: Final answer
    x = 110,302.27

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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.