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Finding the Fourth Proportional to 307,841.40, 461,808.27 and 108,126.59

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Solution

The fourth proportional to 307,841.40, 461,808.27 and 108,126.59 is: 162,206.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,841.40 : 461,808.27 = 108,126.59 : x
  2. Step 2: Convert to fraction form
    307,841.40/461,808.27 = 108,126.59/x
  3. Step 3: Cross multiply
    307,841.40x = 461,808.27 × 108,126.59
  4. Step 4: Simplify right side
    307,841.40x = 49,933,751,159.86
  5. Step 5: Solve for x
    x = 49,933,751,159.86/307,841.40
  6. Step 6: Final answer
    x = 162,206.09

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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.