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Finding the Fourth Proportional to 263,296.80, 362,955.60 and 191,563.20

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Solution

The fourth proportional to 263,296.80, 362,955.60 and 191,563.20 is: 264,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,296.80 : 362,955.60 = 191,563.20 : x
  2. Step 2: Convert to fraction form
    263,296.80/362,955.60 = 191,563.20/x
  3. Step 3: Cross multiply
    263,296.80x = 362,955.60 × 191,563.20
  4. Step 4: Simplify right side
    263,296.80x = 69,528,936,193.92
  5. Step 5: Solve for x
    x = 69,528,936,193.92/263,296.80
  6. Step 6: Final answer
    x = 264,070.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.