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Finding the Fourth Proportional to 119,616.46, 165,094.62 and 68,663.64

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Solution

The fourth proportional to 119,616.46, 165,094.62 and 68,663.64 is: 94,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,616.46 : 165,094.62 = 68,663.64 : x
  2. Step 2: Convert to fraction form
    119,616.46/165,094.62 = 68,663.64/x
  3. Step 3: Cross multiply
    119,616.46x = 165,094.62 × 68,663.64
  4. Step 4: Simplify right side
    119,616.46x = 11,335,997,372.81
  5. Step 5: Solve for x
    x = 11,335,997,372.81/119,616.46
  6. Step 6: Final answer
    x = 94,769.54

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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.