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Finding the Fourth Proportional to 211,006.88, 316,444.20 and 61,257.52

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Solution

The fourth proportional to 211,006.88, 316,444.20 and 61,257.52 is: 91,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,006.88 : 316,444.20 = 61,257.52 : x
  2. Step 2: Convert to fraction form
    211,006.88/316,444.20 = 61,257.52/x
  3. Step 3: Cross multiply
    211,006.88x = 316,444.20 × 61,257.52
  4. Step 4: Simplify right side
    211,006.88x = 19,384,586,910.38
  5. Step 5: Solve for x
    x = 19,384,586,910.38/211,006.88
  6. Step 6: Final answer
    x = 91,867.08

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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.