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Finding the Fourth Proportional to 168,369.11, 252,597.41 and 84,125.87

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Solution

The fourth proportional to 168,369.11, 252,597.41 and 84,125.87 is: 126,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,369.11 : 252,597.41 = 84,125.87 : x
  2. Step 2: Convert to fraction form
    168,369.11/252,597.41 = 84,125.87/x
  3. Step 3: Cross multiply
    168,369.11x = 252,597.41 × 84,125.87
  4. Step 4: Simplify right side
    168,369.11x = 21,249,975,192.38
  5. Step 5: Solve for x
    x = 21,249,975,192.38/168,369.11
  6. Step 6: Final answer
    x = 126,210.66

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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.