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Finding the Fourth Proportional to 538,151.80, 807,227.70 and 164,126.20

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Solution

The fourth proportional to 538,151.80, 807,227.70 and 164,126.20 is: 246,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,151.80 : 807,227.70 = 164,126.20 : x
  2. Step 2: Convert to fraction form
    538,151.80/807,227.70 = 164,126.20/x
  3. Step 3: Cross multiply
    538,151.80x = 807,227.70 × 164,126.20
  4. Step 4: Simplify right side
    538,151.80x = 132,487,214,935.74
  5. Step 5: Solve for x
    x = 132,487,214,935.74/538,151.80
  6. Step 6: Final answer
    x = 246,189.30

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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.