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Finding the Fourth Proportional to 228,451.20, 342,686.52 and 70,682.64

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Solution

The fourth proportional to 228,451.20, 342,686.52 and 70,682.64 is: 106,026.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,451.20 : 342,686.52 = 70,682.64 : x
  2. Step 2: Convert to fraction form
    228,451.20/342,686.52 = 70,682.64/x
  3. Step 3: Cross multiply
    228,451.20x = 342,686.52 × 70,682.64
  4. Step 4: Simplify right side
    228,451.20x = 24,221,987,926.01
  5. Step 5: Solve for x
    x = 24,221,987,926.01/228,451.20
  6. Step 6: Final answer
    x = 106,026.97

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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.