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Finding the Fourth Proportional to 118,392.01, 163,383.38 and 64,680.50

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Solution

The fourth proportional to 118,392.01, 163,383.38 and 64,680.50 is: 89,260.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,392.01 : 163,383.38 = 64,680.50 : x
  2. Step 2: Convert to fraction form
    118,392.01/163,383.38 = 64,680.50/x
  3. Step 3: Cross multiply
    118,392.01x = 163,383.38 × 64,680.50
  4. Step 4: Simplify right side
    118,392.01x = 10,567,719,037.70
  5. Step 5: Solve for x
    x = 10,567,719,037.70/118,392.01
  6. Step 6: Final answer
    x = 89,260.41

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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.