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Finding the Fourth Proportional to 223,858.63, 308,874.90 and 187,706.31

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Solution

The fourth proportional to 223,858.63, 308,874.90 and 187,706.31 is: 258,992.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,858.63 : 308,874.90 = 187,706.31 : x
  2. Step 2: Convert to fraction form
    223,858.63/308,874.90 = 187,706.31/x
  3. Step 3: Cross multiply
    223,858.63x = 308,874.90 × 187,706.31
  4. Step 4: Simplify right side
    223,858.63x = 57,977,767,730.62
  5. Step 5: Solve for x
    x = 57,977,767,730.62/223,858.63
  6. Step 6: Final answer
    x = 258,992.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.