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Finding the Fourth Proportional to 219,751.92, 329,635.98 and 61,984.58

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Solution

The fourth proportional to 219,751.92, 329,635.98 and 61,984.58 is: 92,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,751.92 : 329,635.98 = 61,984.58 : x
  2. Step 2: Convert to fraction form
    219,751.92/329,635.98 = 61,984.58/x
  3. Step 3: Cross multiply
    219,751.92x = 329,635.98 × 61,984.58
  4. Step 4: Simplify right side
    219,751.92x = 20,432,346,125.01
  5. Step 5: Solve for x
    x = 20,432,346,125.01/219,751.92
  6. Step 6: Final answer
    x = 92,979.15

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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.