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Finding the Fourth Proportional to 356,863.12, 535,125.18 and 207,149.30

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Solution

The fourth proportional to 356,863.12, 535,125.18 and 207,149.30 is: 310,625.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,863.12 : 535,125.18 = 207,149.30 : x
  2. Step 2: Convert to fraction form
    356,863.12/535,125.18 = 207,149.30/x
  3. Step 3: Cross multiply
    356,863.12x = 535,125.18 × 207,149.30
  4. Step 4: Simplify right side
    356,863.12x = 110,850,806,557.28
  5. Step 5: Solve for x
    x = 110,850,806,557.28/356,863.12
  6. Step 6: Final answer
    x = 310,625.56

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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.