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Finding the Fourth Proportional to 229,306.60, 343,992.30 and 71,518.60

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Solution

The fourth proportional to 229,306.60, 343,992.30 and 71,518.60 is: 107,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,306.60 : 343,992.30 = 71,518.60 : x
  2. Step 2: Convert to fraction form
    229,306.60/343,992.30 = 71,518.60/x
  3. Step 3: Cross multiply
    229,306.60x = 343,992.30 × 71,518.60
  4. Step 4: Simplify right side
    229,306.60x = 24,601,847,706.78
  5. Step 5: Solve for x
    x = 24,601,847,706.78/229,306.60
  6. Step 6: Final answer
    x = 107,288.01

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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.