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Finding the Fourth Proportional to 98,573.92, 136,032 and 53,861.92

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Solution

The fourth proportional to 98,573.92, 136,032 and 53,861.92 is: 74,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,573.92 : 136,032 = 53,861.92 : x
  2. Step 2: Convert to fraction form
    98,573.92/136,032 = 53,861.92/x
  3. Step 3: Cross multiply
    98,573.92x = 136,032 × 53,861.92
  4. Step 4: Simplify right side
    98,573.92x = 7,326,944,701.44
  5. Step 5: Solve for x
    x = 7,326,944,701.44/98,573.92
  6. Step 6: Final answer
    x = 74,329.44

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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.