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Finding the Fourth Proportional to 168,802,488.92, 253,200,978.16 and 53,785,476.44

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Solution

The fourth proportional to 168,802,488.92, 253,200,978.16 and 53,785,476.44 is: 80,677,336.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,802,488.92 : 253,200,978.16 = 53,785,476.44 : x
  2. Step 2: Convert to fraction form
    168,802,488.92/253,200,978.16 = 53,785,476.44/x
  3. Step 3: Cross multiply
    168,802,488.92x = 253,200,978.16 × 53,785,476.44
  4. Step 4: Simplify right side
    168,802,488.92x = 13,618,535,245,409,634
  5. Step 5: Solve for x
    x = 13,618,535,245,409,634/168,802,488.92
  6. Step 6: Final answer
    x = 80,677,336.77

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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.