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Finding the Fourth Proportional to 234,067.80, 351,101.70 and 145,594.20

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Solution

The fourth proportional to 234,067.80, 351,101.70 and 145,594.20 is: 218,391.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,067.80 : 351,101.70 = 145,594.20 : x
  2. Step 2: Convert to fraction form
    234,067.80/351,101.70 = 145,594.20/x
  3. Step 3: Cross multiply
    234,067.80x = 351,101.70 × 145,594.20
  4. Step 4: Simplify right side
    234,067.80x = 51,118,371,130.14
  5. Step 5: Solve for x
    x = 51,118,371,130.14/234,067.80
  6. Step 6: Final answer
    x = 218,391.30

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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.