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Finding the Fourth Proportional to 356,898.39, 534,871.90 and 188,379.10

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Solution

The fourth proportional to 356,898.39, 534,871.90 and 188,379.10 is: 282,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,898.39 : 534,871.90 = 188,379.10 : x
  2. Step 2: Convert to fraction form
    356,898.39/534,871.90 = 188,379.10/x
  3. Step 3: Cross multiply
    356,898.39x = 534,871.90 × 188,379.10
  4. Step 4: Simplify right side
    356,898.39x = 100,758,687,137.29
  5. Step 5: Solve for x
    x = 100,758,687,137.29/356,898.39
  6. Step 6: Final answer
    x = 282,317.57

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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.