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Finding the Fourth Proportional to 165,969.60, 248,997.96 and 64,769.28

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Solution

The fourth proportional to 165,969.60, 248,997.96 and 64,769.28 is: 97,170.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,969.60 : 248,997.96 = 64,769.28 : x
  2. Step 2: Convert to fraction form
    165,969.60/248,997.96 = 64,769.28/x
  3. Step 3: Cross multiply
    165,969.60x = 248,997.96 × 64,769.28
  4. Step 4: Simplify right side
    165,969.60x = 16,127,418,590.67
  5. Step 5: Solve for x
    x = 16,127,418,590.67/165,969.60
  6. Step 6: Final answer
    x = 97,170.92

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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.