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Finding the Fourth Proportional to 118,201.48, 163,114.50 and 64,487.56

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Solution

The fourth proportional to 118,201.48, 163,114.50 and 64,487.56 is: 88,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,201.48 : 163,114.50 = 64,487.56 : x
  2. Step 2: Convert to fraction form
    118,201.48/163,114.50 = 64,487.56/x
  3. Step 3: Cross multiply
    118,201.48x = 163,114.50 × 64,487.56
  4. Step 4: Simplify right side
    118,201.48x = 10,518,856,105.62
  5. Step 5: Solve for x
    x = 10,518,856,105.62/118,201.48
  6. Step 6: Final answer
    x = 88,990.90

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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.