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Finding the Fourth Proportional to 551,332.99, 827,114.31 and 172,238.41

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Solution

The fourth proportional to 551,332.99, 827,114.31 and 172,238.41 is: 258,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,332.99 : 827,114.31 = 172,238.41 : x
  2. Step 2: Convert to fraction form
    551,332.99/827,114.31 = 172,238.41/x
  3. Step 3: Cross multiply
    551,332.99x = 827,114.31 × 172,238.41
  4. Step 4: Simplify right side
    551,332.99x = 142,460,853,642.65
  5. Step 5: Solve for x
    x = 142,460,853,642.65/551,332.99
  6. Step 6: Final answer
    x = 258,393.49

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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.