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Finding the Fourth Proportional to 112,476.52, 168,650.88 and 45,838.60

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Solution

The fourth proportional to 112,476.52, 168,650.88 and 45,838.60 is: 68,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,476.52 : 168,650.88 = 45,838.60 : x
  2. Step 2: Convert to fraction form
    112,476.52/168,650.88 = 45,838.60/x
  3. Step 3: Cross multiply
    112,476.52x = 168,650.88 × 45,838.60
  4. Step 4: Simplify right side
    112,476.52x = 7,730,720,227.97
  5. Step 5: Solve for x
    x = 7,730,720,227.97/112,476.52
  6. Step 6: Final answer
    x = 68,731.86

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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.