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Finding the Fourth Proportional to 219,508.94, 329,225.13 and 61,699.88

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Solution

The fourth proportional to 219,508.94, 329,225.13 and 61,699.88 is: 92,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,508.94 : 329,225.13 = 61,699.88 : x
  2. Step 2: Convert to fraction form
    219,508.94/329,225.13 = 61,699.88/x
  3. Step 3: Cross multiply
    219,508.94x = 329,225.13 × 61,699.88
  4. Step 4: Simplify right side
    219,508.94x = 20,313,149,367.86
  5. Step 5: Solve for x
    x = 20,313,149,367.86/219,508.94
  6. Step 6: Final answer
    x = 92,539.05

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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.