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Finding the Fourth Proportional to 262,266.80, 393,399.60 and 112,409.92

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Solution

The fourth proportional to 262,266.80, 393,399.60 and 112,409.92 is: 168,614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,266.80 : 393,399.60 = 112,409.92 : x
  2. Step 2: Convert to fraction form
    262,266.80/393,399.60 = 112,409.92/x
  3. Step 3: Cross multiply
    262,266.80x = 393,399.60 × 112,409.92
  4. Step 4: Simplify right side
    262,266.80x = 44,222,017,564.03
  5. Step 5: Solve for x
    x = 44,222,017,564.03/262,266.80
  6. Step 6: Final answer
    x = 168,614.62

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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.