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Finding the Fourth Proportional to 219,671.04, 329,472 and 61,916.16

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Solution

The fourth proportional to 219,671.04, 329,472 and 61,916.16 is: 92,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,671.04 : 329,472 = 61,916.16 : x
  2. Step 2: Convert to fraction form
    219,671.04/329,472 = 61,916.16/x
  3. Step 3: Cross multiply
    219,671.04x = 329,472 × 61,916.16
  4. Step 4: Simplify right side
    219,671.04x = 20,399,641,067.52
  5. Step 5: Solve for x
    x = 20,399,641,067.52/219,671.04
  6. Step 6: Final answer
    x = 92,864.50

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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.