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Finding the Fourth Proportional to 111,901.20, 167,851.80 and 107,600.40

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Solution

The fourth proportional to 111,901.20, 167,851.80 and 107,600.40 is: 161,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,901.20 : 167,851.80 = 107,600.40 : x
  2. Step 2: Convert to fraction form
    111,901.20/167,851.80 = 107,600.40/x
  3. Step 3: Cross multiply
    111,901.20x = 167,851.80 × 107,600.40
  4. Step 4: Simplify right side
    111,901.20x = 18,060,920,820.72
  5. Step 5: Solve for x
    x = 18,060,920,820.72/111,901.20
  6. Step 6: Final answer
    x = 161,400.60

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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.