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Finding the Fourth Proportional to 118,168.10, 163,074.01 and 64,454.97

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Solution

The fourth proportional to 118,168.10, 163,074.01 and 64,454.97 is: 88,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,168.10 : 163,074.01 = 64,454.97 : x
  2. Step 2: Convert to fraction form
    118,168.10/163,074.01 = 64,454.97/x
  3. Step 3: Cross multiply
    118,168.10x = 163,074.01 × 64,454.97
  4. Step 4: Simplify right side
    118,168.10x = 10,510,930,993.57
  5. Step 5: Solve for x
    x = 10,510,930,993.57/118,168.10
  6. Step 6: Final answer
    x = 88,948.97

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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.