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Finding the Fourth Proportional to 207,104.52, 285,900.54 and 156,137.97

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Solution

The fourth proportional to 207,104.52, 285,900.54 and 156,137.97 is: 215,543.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,104.52 : 285,900.54 = 156,137.97 : x
  2. Step 2: Convert to fraction form
    207,104.52/285,900.54 = 156,137.97/x
  3. Step 3: Cross multiply
    207,104.52x = 285,900.54 × 156,137.97
  4. Step 4: Simplify right side
    207,104.52x = 44,639,929,937.50
  5. Step 5: Solve for x
    x = 44,639,929,937.50/207,104.52
  6. Step 6: Final answer
    x = 215,543.00

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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.