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Finding the Fourth Proportional to 219,488.63, 329,233.05 and 61,717.08

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Solution

The fourth proportional to 219,488.63, 329,233.05 and 61,717.08 is: 92,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,488.63 : 329,233.05 = 61,717.08 : x
  2. Step 2: Convert to fraction form
    219,488.63/329,233.05 = 61,717.08/x
  3. Step 3: Cross multiply
    219,488.63x = 329,233.05 × 61,717.08
  4. Step 4: Simplify right side
    219,488.63x = 20,319,300,839.33
  5. Step 5: Solve for x
    x = 20,319,300,839.33/219,488.63
  6. Step 6: Final answer
    x = 92,575.64

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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.