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Finding the Fourth Proportional to 168,574.57, 252,986.29 and 79,827.93

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Solution

The fourth proportional to 168,574.57, 252,986.29 and 79,827.93 is: 119,800.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,574.57 : 252,986.29 = 79,827.93 : x
  2. Step 2: Convert to fraction form
    168,574.57/252,986.29 = 79,827.93/x
  3. Step 3: Cross multiply
    168,574.57x = 252,986.29 × 79,827.93
  4. Step 4: Simplify right side
    168,574.57x = 20,195,371,649.51
  5. Step 5: Solve for x
    x = 20,195,371,649.51/168,574.57
  6. Step 6: Final answer
    x = 119,800.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.