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Finding the Fourth Proportional to 301,105.20, 415,525.17 and 166,969.20

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Solution

The fourth proportional to 301,105.20, 415,525.17 and 166,969.20 is: 230,417.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,105.20 : 415,525.17 = 166,969.20 : x
  2. Step 2: Convert to fraction form
    301,105.20/415,525.17 = 166,969.20/x
  3. Step 3: Cross multiply
    301,105.20x = 415,525.17 × 166,969.20
  4. Step 4: Simplify right side
    301,105.20x = 69,379,905,214.76
  5. Step 5: Solve for x
    x = 69,379,905,214.76/301,105.20
  6. Step 6: Final answer
    x = 230,417.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.