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Finding the Fourth Proportional to 165,745.60, 248,472.60 and 99,212.20

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Solution

The fourth proportional to 165,745.60, 248,472.60 and 99,212.20 is: 148,731.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,745.60 : 248,472.60 = 99,212.20 : x
  2. Step 2: Convert to fraction form
    165,745.60/248,472.60 = 99,212.20/x
  3. Step 3: Cross multiply
    165,745.60x = 248,472.60 × 99,212.20
  4. Step 4: Simplify right side
    165,745.60x = 24,651,513,285.72
  5. Step 5: Solve for x
    x = 24,651,513,285.72/165,745.60
  6. Step 6: Final answer
    x = 148,731.03

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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.