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Finding the Fourth Proportional to 88,894,714.70, 133,342,072.05 and 79,257,917.90

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Solution

The fourth proportional to 88,894,714.70, 133,342,072.05 and 79,257,917.90 is: 118,886,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,894,714.70 : 133,342,072.05 = 79,257,917.90 : x
  2. Step 2: Convert to fraction form
    88,894,714.70/133,342,072.05 = 79,257,917.90/x
  3. Step 3: Cross multiply
    88,894,714.70x = 133,342,072.05 × 79,257,917.90
  4. Step 4: Simplify right side
    88,894,714.70x = 10,568,414,999,154,786
  5. Step 5: Solve for x
    x = 10,568,414,999,154,786/88,894,714.70
  6. Step 6: Final answer
    x = 118,886,876.85

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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.