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Finding the Fourth Proportional to 219,656.19, 329,491.54 and 75,560.56

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Solution

The fourth proportional to 219,656.19, 329,491.54 and 75,560.56 is: 113,343.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,656.19 : 329,491.54 = 75,560.56 : x
  2. Step 2: Convert to fraction form
    219,656.19/329,491.54 = 75,560.56/x
  3. Step 3: Cross multiply
    219,656.19x = 329,491.54 × 75,560.56
  4. Step 4: Simplify right side
    219,656.19x = 24,896,564,899.86
  5. Step 5: Solve for x
    x = 24,896,564,899.86/219,656.19
  6. Step 6: Final answer
    x = 113,343.34

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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.