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Finding the Fourth Proportional to 301,026.80, 415,435.62 and 166,890.80

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Solution

The fourth proportional to 301,026.80, 415,435.62 and 166,890.80 is: 230,319.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,026.80 : 415,435.62 = 166,890.80 : x
  2. Step 2: Convert to fraction form
    301,026.80/415,435.62 = 166,890.80/x
  3. Step 3: Cross multiply
    301,026.80x = 415,435.62 × 166,890.80
  4. Step 4: Simplify right side
    301,026.80x = 69,332,382,970.30
  5. Step 5: Solve for x
    x = 69,332,382,970.30/301,026.80
  6. Step 6: Final answer
    x = 230,319.64

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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.