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Finding the Fourth Proportional to 208,797.90, 288,141.91 and 113,304.62

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Solution

The fourth proportional to 208,797.90, 288,141.91 and 113,304.62 is: 156,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,797.90 : 288,141.91 = 113,304.62 : x
  2. Step 2: Convert to fraction form
    208,797.90/288,141.91 = 113,304.62/x
  3. Step 3: Cross multiply
    208,797.90x = 288,141.91 × 113,304.62
  4. Step 4: Simplify right side
    208,797.90x = 32,647,810,055.72
  5. Step 5: Solve for x
    x = 32,647,810,055.72/208,797.90
  6. Step 6: Final answer
    x = 156,360.81

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1.5x scale

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.