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Finding the Fourth Proportional to 156,992.60, 216,573.62 and 93,285.29

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Solution

The fourth proportional to 156,992.60, 216,573.62 and 93,285.29 is: 128,688.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,992.60 : 216,573.62 = 93,285.29 : x
  2. Step 2: Convert to fraction form
    156,992.60/216,573.62 = 93,285.29/x
  3. Step 3: Cross multiply
    156,992.60x = 216,573.62 × 93,285.29
  4. Step 4: Simplify right side
    156,992.60x = 20,203,132,481.62
  5. Step 5: Solve for x
    x = 20,203,132,481.62/156,992.60
  6. Step 6: Final answer
    x = 128,688.44

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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.