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Finding the Fourth Proportional to 503,115.17, 754,678.01 and 148,135.91

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Solution

The fourth proportional to 503,115.17, 754,678.01 and 148,135.91 is: 222,205.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,115.17 : 754,678.01 = 148,135.91 : x
  2. Step 2: Convert to fraction form
    503,115.17/754,678.01 = 148,135.91/x
  3. Step 3: Cross multiply
    503,115.17x = 754,678.01 × 148,135.91
  4. Step 4: Simplify right side
    503,115.17x = 111,794,910,365.29
  5. Step 5: Solve for x
    x = 111,794,910,365.29/503,115.17
  6. Step 6: Final answer
    x = 222,205.41

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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.