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Finding the Fourth Proportional to 118,671.03, 163,766.22 and 64,959.46

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Solution

The fourth proportional to 118,671.03, 163,766.22 and 64,959.46 is: 89,644.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,671.03 : 163,766.22 = 64,959.46 : x
  2. Step 2: Convert to fraction form
    118,671.03/163,766.22 = 64,959.46/x
  3. Step 3: Cross multiply
    118,671.03x = 163,766.22 × 64,959.46
  4. Step 4: Simplify right side
    118,671.03x = 10,638,165,217.44
  5. Step 5: Solve for x
    x = 10,638,165,217.44/118,671.03
  6. Step 6: Final answer
    x = 89,644.16

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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.