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Finding the Fourth Proportional to 127,813.44, 191,590.29 and 52,974.30

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Solution

The fourth proportional to 127,813.44, 191,590.29 and 52,974.30 is: 79,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,813.44 : 191,590.29 = 52,974.30 : x
  2. Step 2: Convert to fraction form
    127,813.44/191,590.29 = 52,974.30/x
  3. Step 3: Cross multiply
    127,813.44x = 191,590.29 × 52,974.30
  4. Step 4: Simplify right side
    127,813.44x = 10,149,361,499.55
  5. Step 5: Solve for x
    x = 10,149,361,499.55/127,813.44
  6. Step 6: Final answer
    x = 79,407.62

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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.