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Finding the Fourth Proportional to 144,463.50, 199,354.58 and 79,931.71

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Solution

The fourth proportional to 144,463.50, 199,354.58 and 79,931.71 is: 110,302.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,463.50 : 199,354.58 = 79,931.71 : x
  2. Step 2: Convert to fraction form
    144,463.50/199,354.58 = 79,931.71/x
  3. Step 3: Cross multiply
    144,463.50x = 199,354.58 × 79,931.71
  4. Step 4: Simplify right side
    144,463.50x = 15,934,751,478.96
  5. Step 5: Solve for x
    x = 15,934,751,478.96/144,463.50
  6. Step 6: Final answer
    x = 110,302.96

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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.