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Finding the Fourth Proportional to 229,169.15, 316,311.56 and 156,601.42

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Solution

The fourth proportional to 229,169.15, 316,311.56 and 156,601.42 is: 216,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,169.15 : 316,311.56 = 156,601.42 : x
  2. Step 2: Convert to fraction form
    229,169.15/316,311.56 = 156,601.42/x
  3. Step 3: Cross multiply
    229,169.15x = 316,311.56 × 156,601.42
  4. Step 4: Simplify right side
    229,169.15x = 49,534,839,458.42
  5. Step 5: Solve for x
    x = 49,534,839,458.42/229,169.15
  6. Step 6: Final answer
    x = 216,149.68

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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.