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Finding the Fourth Proportional to 148,645.90, 222,940.80 and 42,029

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Solution

The fourth proportional to 148,645.90, 222,940.80 and 42,029 is: 63,035.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,645.90 : 222,940.80 = 42,029 : x
  2. Step 2: Convert to fraction form
    148,645.90/222,940.80 = 42,029/x
  3. Step 3: Cross multiply
    148,645.90x = 222,940.80 × 42,029
  4. Step 4: Simplify right side
    148,645.90x = 9,369,978,883.20
  5. Step 5: Solve for x
    x = 9,369,978,883.20/148,645.90
  6. Step 6: Final answer
    x = 63,035.57

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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.