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Finding the Fourth Proportional to 211,487.52, 317,245.86 and 61,729.06

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Solution

The fourth proportional to 211,487.52, 317,245.86 and 61,729.06 is: 92,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,487.52 : 317,245.86 = 61,729.06 : x
  2. Step 2: Convert to fraction form
    211,487.52/317,245.86 = 61,729.06/x
  3. Step 3: Cross multiply
    211,487.52x = 317,245.86 × 61,729.06
  4. Step 4: Simplify right side
    211,487.52x = 19,583,288,726.69
  5. Step 5: Solve for x
    x = 19,583,288,726.69/211,487.52
  6. Step 6: Final answer
    x = 92,597.85

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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.