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Finding the Fourth Proportional to 500,542.69, 750,807.78 and 121,466.65

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Solution

The fourth proportional to 500,542.69, 750,807.78 and 121,466.65 is: 182,198.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,542.69 : 750,807.78 = 121,466.65 : x
  2. Step 2: Convert to fraction form
    500,542.69/750,807.78 = 121,466.65/x
  3. Step 3: Cross multiply
    500,542.69x = 750,807.78 × 121,466.65
  4. Step 4: Simplify right side
    500,542.69x = 91,198,105,830.54
  5. Step 5: Solve for x
    x = 91,198,105,830.54/500,542.69
  6. Step 6: Final answer
    x = 182,198.46

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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.