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Finding the Fourth Proportional to 111,591.80, 167,403.90 and 36,715.40

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Solution

The fourth proportional to 111,591.80, 167,403.90 and 36,715.40 is: 55,078.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,591.80 : 167,403.90 = 36,715.40 : x
  2. Step 2: Convert to fraction form
    111,591.80/167,403.90 = 36,715.40/x
  3. Step 3: Cross multiply
    111,591.80x = 167,403.90 × 36,715.40
  4. Step 4: Simplify right side
    111,591.80x = 6,146,301,150.06
  5. Step 5: Solve for x
    x = 6,146,301,150.06/111,591.80
  6. Step 6: Final answer
    x = 55,078.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.