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Finding the Fourth Proportional to 165,997.49, 248,938.72 and 64,771.79

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Solution

The fourth proportional to 165,997.49, 248,938.72 and 64,771.79 is: 97,135.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,997.49 : 248,938.72 = 64,771.79 : x
  2. Step 2: Convert to fraction form
    165,997.49/248,938.72 = 64,771.79/x
  3. Step 3: Cross multiply
    165,997.49x = 248,938.72 × 64,771.79
  4. Step 4: Simplify right side
    165,997.49x = 16,124,205,088.09
  5. Step 5: Solve for x
    x = 16,124,205,088.09/165,997.49
  6. Step 6: Final answer
    x = 97,135.24

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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.