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Finding the Fourth Proportional to 301,105.60, 451,658.40 and 123,553.60

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Solution

The fourth proportional to 301,105.60, 451,658.40 and 123,553.60 is: 185,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,105.60 : 451,658.40 = 123,553.60 : x
  2. Step 2: Convert to fraction form
    301,105.60/451,658.40 = 123,553.60/x
  3. Step 3: Cross multiply
    301,105.60x = 451,658.40 × 123,553.60
  4. Step 4: Simplify right side
    301,105.60x = 55,804,021,290.24
  5. Step 5: Solve for x
    x = 55,804,021,290.24/301,105.60
  6. Step 6: Final answer
    x = 185,330.40

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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.