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Finding the Fourth Proportional to 178,597.90, 267,959.22 and 111,959.20

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Solution

The fourth proportional to 178,597.90, 267,959.22 and 111,959.20 is: 167,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,597.90 : 267,959.22 = 111,959.20 : x
  2. Step 2: Convert to fraction form
    178,597.90/267,959.22 = 111,959.20/x
  3. Step 3: Cross multiply
    178,597.90x = 267,959.22 × 111,959.20
  4. Step 4: Simplify right side
    178,597.90x = 30,000,499,903.82
  5. Step 5: Solve for x
    x = 30,000,499,903.82/178,597.90
  6. Step 6: Final answer
    x = 167,977.90

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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.