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Finding the Fourth Proportional to 101,000.22, 139,367.19 and 57,981.59

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Solution

The fourth proportional to 101,000.22, 139,367.19 and 57,981.59 is: 80,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,000.22 : 139,367.19 = 57,981.59 : x
  2. Step 2: Convert to fraction form
    101,000.22/139,367.19 = 57,981.59/x
  3. Step 3: Cross multiply
    101,000.22x = 139,367.19 × 57,981.59
  4. Step 4: Simplify right side
    101,000.22x = 8,080,730,573.20
  5. Step 5: Solve for x
    x = 8,080,730,573.20/101,000.22
  6. Step 6: Final answer
    x = 80,007.06

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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.