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Finding the Fourth Proportional to 263,296.98, 363,348.35 and 142,437.87

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Solution

The fourth proportional to 263,296.98, 363,348.35 and 142,437.87 is: 196,563.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,296.98 : 363,348.35 = 142,437.87 : x
  2. Step 2: Convert to fraction form
    263,296.98/363,348.35 = 142,437.87/x
  3. Step 3: Cross multiply
    263,296.98x = 363,348.35 × 142,437.87
  4. Step 4: Simplify right side
    263,296.98x = 51,754,564,329.83
  5. Step 5: Solve for x
    x = 51,754,564,329.83/263,296.98
  6. Step 6: Final answer
    x = 196,563.46

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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.