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Finding the Fourth Proportional to 67,442.40, 101,076.12 and 45,222.48

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Solution

The fourth proportional to 67,442.40, 101,076.12 and 45,222.48 is: 67,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,442.40 : 101,076.12 = 45,222.48 : x
  2. Step 2: Convert to fraction form
    67,442.40/101,076.12 = 45,222.48/x
  3. Step 3: Cross multiply
    67,442.40x = 101,076.12 × 45,222.48
  4. Step 4: Simplify right side
    67,442.40x = 4,570,912,815.18
  5. Step 5: Solve for x
    x = 4,570,912,815.18/67,442.40
  6. Step 6: Final answer
    x = 67,775.06

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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.