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Finding the Fourth Proportional to 118,246.16, 163,183.16 and 64,534.62

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Solution

The fourth proportional to 118,246.16, 163,183.16 and 64,534.62 is: 89,059.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,246.16 : 163,183.16 = 64,534.62 : x
  2. Step 2: Convert to fraction form
    118,246.16/163,183.16 = 64,534.62/x
  3. Step 3: Cross multiply
    118,246.16x = 163,183.16 × 64,534.62
  4. Step 4: Simplify right side
    118,246.16x = 10,530,962,490.37
  5. Step 5: Solve for x
    x = 10,530,962,490.37/118,246.16
  6. Step 6: Final answer
    x = 89,059.66

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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.