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Finding the Fourth Proportional to 441,237.68, 661,960.20 and 125,699.12

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Solution

The fourth proportional to 441,237.68, 661,960.20 and 125,699.12 is: 188,578.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,237.68 : 661,960.20 = 125,699.12 : x
  2. Step 2: Convert to fraction form
    441,237.68/661,960.20 = 125,699.12/x
  3. Step 3: Cross multiply
    441,237.68x = 661,960.20 × 125,699.12
  4. Step 4: Simplify right side
    441,237.68x = 83,207,814,615.02
  5. Step 5: Solve for x
    x = 83,207,814,615.02/441,237.68
  6. Step 6: Final answer
    x = 188,578.22

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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.