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Finding the Fourth Proportional to 217,969.92, 326,952.45 and 153,663.35

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Solution

The fourth proportional to 217,969.92, 326,952.45 and 153,663.35 is: 230,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,969.92 : 326,952.45 = 153,663.35 : x
  2. Step 2: Convert to fraction form
    217,969.92/326,952.45 = 153,663.35/x
  3. Step 3: Cross multiply
    217,969.92x = 326,952.45 × 153,663.35
  4. Step 4: Simplify right side
    217,969.92x = 50,240,607,122.95
  5. Step 5: Solve for x
    x = 50,240,607,122.95/217,969.92
  6. Step 6: Final answer
    x = 230,493.30

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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.