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Finding the Fourth Proportional to 219,578.60, 329,371.50 and 61,810.82

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Solution

The fourth proportional to 219,578.60, 329,371.50 and 61,810.82 is: 92,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,578.60 : 329,371.50 = 61,810.82 : x
  2. Step 2: Convert to fraction form
    219,578.60/329,371.50 = 61,810.82/x
  3. Step 3: Cross multiply
    219,578.60x = 329,371.50 × 61,810.82
  4. Step 4: Simplify right side
    219,578.60x = 20,358,722,499.63
  5. Step 5: Solve for x
    x = 20,358,722,499.63/219,578.60
  6. Step 6: Final answer
    x = 92,717.24

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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.