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Finding the Fourth Proportional to 118,464.93, 163,481.90 and 64,750.59

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Solution

The fourth proportional to 118,464.93, 163,481.90 and 64,750.59 is: 89,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,464.93 : 163,481.90 = 64,750.59 : x
  2. Step 2: Convert to fraction form
    118,464.93/163,481.90 = 64,750.59/x
  3. Step 3: Cross multiply
    118,464.93x = 163,481.90 × 64,750.59
  4. Step 4: Simplify right side
    118,464.93x = 10,585,549,155.57
  5. Step 5: Solve for x
    x = 10,585,549,155.57/118,464.93
  6. Step 6: Final answer
    x = 89,355.97

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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.