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Finding the Fourth Proportional to 338,463.59, 507,161.32 and 124,937.69

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Solution

The fourth proportional to 338,463.59, 507,161.32 and 124,937.69 is: 187,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,463.59 : 507,161.32 = 124,937.69 : x
  2. Step 2: Convert to fraction form
    338,463.59/507,161.32 = 124,937.69/x
  3. Step 3: Cross multiply
    338,463.59x = 507,161.32 × 124,937.69
  4. Step 4: Simplify right side
    338,463.59x = 63,363,560,930.00
  5. Step 5: Solve for x
    x = 63,363,560,930.00/338,463.59
  6. Step 6: Final answer
    x = 187,209.39

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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.