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Finding the Fourth Proportional to 104,540.80, 144,267.20 and 56,794.24

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Solution

The fourth proportional to 104,540.80, 144,267.20 and 56,794.24 is: 78,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,540.80 : 144,267.20 = 56,794.24 : x
  2. Step 2: Convert to fraction form
    104,540.80/144,267.20 = 56,794.24/x
  3. Step 3: Cross multiply
    104,540.80x = 144,267.20 × 56,794.24
  4. Step 4: Simplify right side
    104,540.80x = 8,193,545,980.93
  5. Step 5: Solve for x
    x = 8,193,545,980.93/104,540.80
  6. Step 6: Final answer
    x = 78,376.54

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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.