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Finding the Fourth Proportional to 118,671.96, 163,760.97 and 64,946.60

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Solution

The fourth proportional to 118,671.96, 163,760.97 and 64,946.60 is: 89,622.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,671.96 : 163,760.97 = 64,946.60 : x
  2. Step 2: Convert to fraction form
    118,671.96/163,760.97 = 64,946.60/x
  3. Step 3: Cross multiply
    118,671.96x = 163,760.97 × 64,946.60
  4. Step 4: Simplify right side
    118,671.96x = 10,635,718,214.20
  5. Step 5: Solve for x
    x = 10,635,718,214.20/118,671.96
  6. Step 6: Final answer
    x = 89,622.84

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1.5x scale

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.