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Finding the Fourth Proportional to 73,116.30, 109,674.45 and 53,433.30

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Solution

The fourth proportional to 73,116.30, 109,674.45 and 53,433.30 is: 80,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,116.30 : 109,674.45 = 53,433.30 : x
  2. Step 2: Convert to fraction form
    73,116.30/109,674.45 = 53,433.30/x
  3. Step 3: Cross multiply
    73,116.30x = 109,674.45 × 53,433.30
  4. Step 4: Simplify right side
    73,116.30x = 5,860,267,789.19
  5. Step 5: Solve for x
    x = 5,860,267,789.19/73,116.30
  6. Step 6: Final answer
    x = 80,149.95

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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.