Home / 219,118.24-328,644.38-69,339.04

Finding the Fourth Proportional to 219,118.24, 328,644.38 and 69,339.04

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Solution

The fourth proportional to 219,118.24, 328,644.38 and 69,339.04 is: 103,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,118.24 : 328,644.38 = 69,339.04 : x
  2. Step 2: Convert to fraction form
    219,118.24/328,644.38 = 69,339.04/x
  3. Step 3: Cross multiply
    219,118.24x = 328,644.38 × 69,339.04
  4. Step 4: Simplify right side
    219,118.24x = 22,787,885,810.60
  5. Step 5: Solve for x
    x = 22,787,885,810.60/219,118.24
  6. Step 6: Final answer
    x = 103,998.12

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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.