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Finding the Fourth Proportional to 213,046.88, 319,515.64 and 63,252.42

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Solution

The fourth proportional to 213,046.88, 319,515.64 and 63,252.42 is: 94,862.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,046.88 : 319,515.64 = 63,252.42 : x
  2. Step 2: Convert to fraction form
    213,046.88/319,515.64 = 63,252.42/x
  3. Step 3: Cross multiply
    213,046.88x = 319,515.64 × 63,252.42
  4. Step 4: Simplify right side
    213,046.88x = 20,210,136,338.73
  5. Step 5: Solve for x
    x = 20,210,136,338.73/213,046.88
  6. Step 6: Final answer
    x = 94,862.39

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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.