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Finding the Fourth Proportional to 219,655.37, 329,490.32 and 75,559.75

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Solution

The fourth proportional to 219,655.37, 329,490.32 and 75,559.75 is: 113,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,655.37 : 329,490.32 = 75,559.75 : x
  2. Step 2: Convert to fraction form
    219,655.37/329,490.32 = 75,559.75/x
  3. Step 3: Cross multiply
    219,655.37x = 329,490.32 × 75,559.75
  4. Step 4: Simplify right side
    219,655.37x = 24,896,205,005.10
  5. Step 5: Solve for x
    x = 24,896,205,005.10/219,655.37
  6. Step 6: Final answer
    x = 113,342.12

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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.