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Finding the Fourth Proportional to 211,245.53, 316,868.52 and 53,473.97

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Solution

The fourth proportional to 211,245.53, 316,868.52 and 53,473.97 is: 80,211.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,245.53 : 316,868.52 = 53,473.97 : x
  2. Step 2: Convert to fraction form
    211,245.53/316,868.52 = 53,473.97/x
  3. Step 3: Cross multiply
    211,245.53x = 316,868.52 × 53,473.97
  4. Step 4: Simplify right side
    211,245.53x = 16,944,216,148.08
  5. Step 5: Solve for x
    x = 16,944,216,148.08/211,245.53
  6. Step 6: Final answer
    x = 80,211.01

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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.