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Finding the Fourth Proportional to 84,590.80, 126,934.80 and 32,005.60

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Solution

The fourth proportional to 84,590.80, 126,934.80 and 32,005.60 is: 48,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,590.80 : 126,934.80 = 32,005.60 : x
  2. Step 2: Convert to fraction form
    84,590.80/126,934.80 = 32,005.60/x
  3. Step 3: Cross multiply
    84,590.80x = 126,934.80 × 32,005.60
  4. Step 4: Simplify right side
    84,590.80x = 4,062,624,434.88
  5. Step 5: Solve for x
    x = 4,062,624,434.88/84,590.80
  6. Step 6: Final answer
    x = 48,026.79

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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.