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Finding the Fourth Proportional to 251,367.50, 346,893.72 and 136,653.86

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Solution

The fourth proportional to 251,367.50, 346,893.72 and 136,653.86 is: 188,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,367.50 : 346,893.72 = 136,653.86 : x
  2. Step 2: Convert to fraction form
    251,367.50/346,893.72 = 136,653.86/x
  3. Step 3: Cross multiply
    251,367.50x = 346,893.72 × 136,653.86
  4. Step 4: Simplify right side
    251,367.50x = 47,404,365,847.76
  5. Step 5: Solve for x
    x = 47,404,365,847.76/251,367.50
  6. Step 6: Final answer
    x = 188,585.90

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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.