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Finding the Fourth Proportional to 262,023.40, 393,035.10 and 75,010.60

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Solution

The fourth proportional to 262,023.40, 393,035.10 and 75,010.60 is: 112,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,023.40 : 393,035.10 = 75,010.60 : x
  2. Step 2: Convert to fraction form
    262,023.40/393,035.10 = 75,010.60/x
  3. Step 3: Cross multiply
    262,023.40x = 393,035.10 × 75,010.60
  4. Step 4: Simplify right side
    262,023.40x = 29,481,798,672.06
  5. Step 5: Solve for x
    x = 29,481,798,672.06/262,023.40
  6. Step 6: Final answer
    x = 112,515.90

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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.