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Finding the Fourth Proportional to 245,759.64, 368,782.80 and 103,596.24

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Solution

The fourth proportional to 245,759.64, 368,782.80 and 103,596.24 is: 155,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,759.64 : 368,782.80 = 103,596.24 : x
  2. Step 2: Convert to fraction form
    245,759.64/368,782.80 = 103,596.24/x
  3. Step 3: Cross multiply
    245,759.64x = 368,782.80 × 103,596.24
  4. Step 4: Simplify right side
    245,759.64x = 38,204,511,456.67
  5. Step 5: Solve for x
    x = 38,204,511,456.67/245,759.64
  6. Step 6: Final answer
    x = 155,454.78

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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.