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Finding the Fourth Proportional to 238,884.82, 358,379.08 and 72,668.50

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Solution

The fourth proportional to 238,884.82, 358,379.08 and 72,668.50 is: 109,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,884.82 : 358,379.08 = 72,668.50 : x
  2. Step 2: Convert to fraction form
    238,884.82/358,379.08 = 72,668.50/x
  3. Step 3: Cross multiply
    238,884.82x = 358,379.08 × 72,668.50
  4. Step 4: Simplify right side
    238,884.82x = 26,042,870,174.98
  5. Step 5: Solve for x
    x = 26,042,870,174.98/238,884.82
  6. Step 6: Final answer
    x = 109,018.52

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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.