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Finding the Fourth Proportional to 165,897.80, 248,846.70 and 99,542.60

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Solution

The fourth proportional to 165,897.80, 248,846.70 and 99,542.60 is: 149,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,897.80 : 248,846.70 = 99,542.60 : x
  2. Step 2: Convert to fraction form
    165,897.80/248,846.70 = 99,542.60/x
  3. Step 3: Cross multiply
    165,897.80x = 248,846.70 × 99,542.60
  4. Step 4: Simplify right side
    165,897.80x = 24,770,847,519.42
  5. Step 5: Solve for x
    x = 24,770,847,519.42/165,897.80
  6. Step 6: Final answer
    x = 149,313.90

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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.