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Finding the Fourth Proportional to 219,553.96, 302,817.29 and 188,979.10

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Solution

The fourth proportional to 219,553.96, 302,817.29 and 188,979.10 is: 260,647.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,553.96 : 302,817.29 = 188,979.10 : x
  2. Step 2: Convert to fraction form
    219,553.96/302,817.29 = 188,979.10/x
  3. Step 3: Cross multiply
    219,553.96x = 302,817.29 × 188,979.10
  4. Step 4: Simplify right side
    219,553.96x = 57,226,138,928.64
  5. Step 5: Solve for x
    x = 57,226,138,928.64/219,553.96
  6. Step 6: Final answer
    x = 260,647.26

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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.