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Finding the Fourth Proportional to 213,058.33, 319,631.24 and 63,285.28

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Solution

The fourth proportional to 213,058.33, 319,631.24 and 63,285.28 is: 94,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,058.33 : 319,631.24 = 63,285.28 : x
  2. Step 2: Convert to fraction form
    213,058.33/319,631.24 = 63,285.28/x
  3. Step 3: Cross multiply
    213,058.33x = 319,631.24 × 63,285.28
  4. Step 4: Simplify right side
    213,058.33x = 20,227,953,321.23
  5. Step 5: Solve for x
    x = 20,227,953,321.23/213,058.33
  6. Step 6: Final answer
    x = 94,940.92

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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.