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Finding the Fourth Proportional to 118,199.99, 163,110.30 and 64,481.80

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Solution

The fourth proportional to 118,199.99, 163,110.30 and 64,481.80 is: 88,981.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,199.99 : 163,110.30 = 64,481.80 : x
  2. Step 2: Convert to fraction form
    118,199.99/163,110.30 = 64,481.80/x
  3. Step 3: Cross multiply
    118,199.99x = 163,110.30 × 64,481.80
  4. Step 4: Simplify right side
    118,199.99x = 10,517,646,150.32
  5. Step 5: Solve for x
    x = 10,517,646,150.32/118,199.99
  6. Step 6: Final answer
    x = 88,981.79

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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.