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Finding the Fourth Proportional to 356,620.98, 534,406.52 and 156,758.34

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Solution

The fourth proportional to 356,620.98, 534,406.52 and 156,758.34 is: 234,906.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,620.98 : 534,406.52 = 156,758.34 : x
  2. Step 2: Convert to fraction form
    356,620.98/534,406.52 = 156,758.34/x
  3. Step 3: Cross multiply
    356,620.98x = 534,406.52 × 156,758.34
  4. Step 4: Simplify right side
    356,620.98x = 83,772,678,960.38
  5. Step 5: Solve for x
    x = 83,772,678,960.38/356,620.98
  6. Step 6: Final answer
    x = 234,906.76

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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.