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Finding the Fourth Proportional to 132,407,764.40, 198,493,451.40 and 51,609,940.40

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Solution

The fourth proportional to 132,407,764.40, 198,493,451.40 and 51,609,940.40 is: 77,368,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,407,764.40 : 198,493,451.40 = 51,609,940.40 : x
  2. Step 2: Convert to fraction form
    132,407,764.40/198,493,451.40 = 51,609,940.40/x
  3. Step 3: Cross multiply
    132,407,764.40x = 198,493,451.40 × 51,609,940.40
  4. Step 4: Simplify right side
    132,407,764.40x = 10,244,235,196,544,296
  5. Step 5: Solve for x
    x = 10,244,235,196,544,296/132,407,764.40
  6. Step 6: Final answer
    x = 77,368,840.44

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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.