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Finding the Fourth Proportional to 262,102.56, 393,153.78 and 65,110.56

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Solution

The fourth proportional to 262,102.56, 393,153.78 and 65,110.56 is: 97,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,102.56 : 393,153.78 = 65,110.56 : x
  2. Step 2: Convert to fraction form
    262,102.56/393,153.78 = 65,110.56/x
  3. Step 3: Cross multiply
    262,102.56x = 393,153.78 × 65,110.56
  4. Step 4: Simplify right side
    262,102.56x = 25,598,462,781.92
  5. Step 5: Solve for x
    x = 25,598,462,781.92/262,102.56
  6. Step 6: Final answer
    x = 97,665.83

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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.