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Finding the Fourth Proportional to 118,595.27, 163,660.88 and 64,879.31

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Solution

The fourth proportional to 118,595.27, 163,660.88 and 64,879.31 is: 89,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,595.27 : 163,660.88 = 64,879.31 : x
  2. Step 2: Convert to fraction form
    118,595.27/163,660.88 = 64,879.31/x
  3. Step 3: Cross multiply
    118,595.27x = 163,660.88 × 64,879.31
  4. Step 4: Simplify right side
    118,595.27x = 10,618,204,312.29
  5. Step 5: Solve for x
    x = 10,618,204,312.29/118,595.27
  6. Step 6: Final answer
    x = 89,533.12

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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.