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Finding the Fourth Proportional to 156,671.48, 216,183.84 and 89,590.52

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Solution

The fourth proportional to 156,671.48, 216,183.84 and 89,590.52 is: 123,621.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,671.48 : 216,183.84 = 89,590.52 : x
  2. Step 2: Convert to fraction form
    156,671.48/216,183.84 = 89,590.52/x
  3. Step 3: Cross multiply
    156,671.48x = 216,183.84 × 89,590.52
  4. Step 4: Simplify right side
    156,671.48x = 19,368,022,845.69
  5. Step 5: Solve for x
    x = 19,368,022,845.69/156,671.48
  6. Step 6: Final answer
    x = 123,621.88

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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.