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Finding the Fourth Proportional to 262,069.48, 393,099.90 and 75,076.84

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Solution

The fourth proportional to 262,069.48, 393,099.90 and 75,076.84 is: 112,614.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,069.48 : 393,099.90 = 75,076.84 : x
  2. Step 2: Convert to fraction form
    262,069.48/393,099.90 = 75,076.84/x
  3. Step 3: Cross multiply
    262,069.48x = 393,099.90 × 75,076.84
  4. Step 4: Simplify right side
    262,069.48x = 29,512,698,296.32
  5. Step 5: Solve for x
    x = 29,512,698,296.32/262,069.48
  6. Step 6: Final answer
    x = 112,614.02

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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.