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Finding the Fourth Proportional to 72,599.08, 108,898.39 and 19,296.42

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Solution

The fourth proportional to 72,599.08, 108,898.39 and 19,296.42 is: 28,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,599.08 : 108,898.39 = 19,296.42 : x
  2. Step 2: Convert to fraction form
    72,599.08/108,898.39 = 19,296.42/x
  3. Step 3: Cross multiply
    72,599.08x = 108,898.39 × 19,296.42
  4. Step 4: Simplify right side
    72,599.08x = 2,101,348,702.04
  5. Step 5: Solve for x
    x = 2,101,348,702.04/72,599.08
  6. Step 6: Final answer
    x = 28,944.57

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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.