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Finding the Fourth Proportional to 262,236.40, 393,356.76 and 75,253.84

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Solution

The fourth proportional to 262,236.40, 393,356.76 and 75,253.84 is: 112,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,236.40 : 393,356.76 = 75,253.84 : x
  2. Step 2: Convert to fraction form
    262,236.40/393,356.76 = 75,253.84/x
  3. Step 3: Cross multiply
    262,236.40x = 393,356.76 × 75,253.84
  4. Step 4: Simplify right side
    262,236.40x = 29,601,606,679.96
  5. Step 5: Solve for x
    x = 29,601,606,679.96/262,236.40
  6. Step 6: Final answer
    x = 112,881.38

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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.