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Finding the Fourth Proportional to 192,603.20, 288,987.51 and 74,357.58

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Solution

The fourth proportional to 192,603.20, 288,987.51 and 74,357.58 is: 111,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,603.20 : 288,987.51 = 74,357.58 : x
  2. Step 2: Convert to fraction form
    192,603.20/288,987.51 = 74,357.58/x
  3. Step 3: Cross multiply
    192,603.20x = 288,987.51 × 74,357.58
  4. Step 4: Simplify right side
    192,603.20x = 21,488,411,893.83
  5. Step 5: Solve for x
    x = 21,488,411,893.83/192,603.20
  6. Step 6: Final answer
    x = 111,568.30

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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.