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Finding the Fourth Proportional to 219,643.08, 303,105.24 and 122,845.92

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Solution

The fourth proportional to 219,643.08, 303,105.24 and 122,845.92 is: 169,526.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,643.08 : 303,105.24 = 122,845.92 : x
  2. Step 2: Convert to fraction form
    219,643.08/303,105.24 = 122,845.92/x
  3. Step 3: Cross multiply
    219,643.08x = 303,105.24 × 122,845.92
  4. Step 4: Simplify right side
    219,643.08x = 37,235,242,064.62
  5. Step 5: Solve for x
    x = 37,235,242,064.62/219,643.08
  6. Step 6: Final answer
    x = 169,526.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.