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Finding the Fourth Proportional to 211,299.92, 316,953.35 and 59,500.65

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Solution

The fourth proportional to 211,299.92, 316,953.35 and 59,500.65 is: 89,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,299.92 : 316,953.35 = 59,500.65 : x
  2. Step 2: Convert to fraction form
    211,299.92/316,953.35 = 59,500.65/x
  3. Step 3: Cross multiply
    211,299.92x = 316,953.35 × 59,500.65
  4. Step 4: Simplify right side
    211,299.92x = 18,858,930,010.71
  5. Step 5: Solve for x
    x = 18,858,930,010.71/211,299.92
  6. Step 6: Final answer
    x = 89,251.95

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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.