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Finding the Fourth Proportional to 165,676.80, 248,320.80 and 70,906.80

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Solution

The fourth proportional to 165,676.80, 248,320.80 and 70,906.80 is: 106,277.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,676.80 : 248,320.80 = 70,906.80 : x
  2. Step 2: Convert to fraction form
    165,676.80/248,320.80 = 70,906.80/x
  3. Step 3: Cross multiply
    165,676.80x = 248,320.80 × 70,906.80
  4. Step 4: Simplify right side
    165,676.80x = 17,607,633,301.44
  5. Step 5: Solve for x
    x = 17,607,633,301.44/165,676.80
  6. Step 6: Final answer
    x = 106,277.00

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1.5x scale

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.