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Finding the Fourth Proportional to 118,171.63, 163,077.36 and 64,457.80

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Solution

The fourth proportional to 118,171.63, 163,077.36 and 64,457.80 is: 88,952.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,171.63 : 163,077.36 = 64,457.80 : x
  2. Step 2: Convert to fraction form
    118,171.63/163,077.36 = 64,457.80/x
  3. Step 3: Cross multiply
    118,171.63x = 163,077.36 × 64,457.80
  4. Step 4: Simplify right side
    118,171.63x = 10,511,608,016.55
  5. Step 5: Solve for x
    x = 10,511,608,016.55/118,171.63
  6. Step 6: Final answer
    x = 88,952.04

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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.