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Finding the Fourth Proportional to 111,296.80, 166,945.20 and 97,472.80

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Solution

The fourth proportional to 111,296.80, 166,945.20 and 97,472.80 is: 146,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,296.80 : 166,945.20 = 97,472.80 : x
  2. Step 2: Convert to fraction form
    111,296.80/166,945.20 = 97,472.80/x
  3. Step 3: Cross multiply
    111,296.80x = 166,945.20 × 97,472.80
  4. Step 4: Simplify right side
    111,296.80x = 16,272,616,090.56
  5. Step 5: Solve for x
    x = 16,272,616,090.56/111,296.80
  6. Step 6: Final answer
    x = 146,209.20

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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.