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Finding the Fourth Proportional to 57,876,608.88, 79,867,653.81 and 32,758,179.21

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Solution

The fourth proportional to 57,876,608.88, 79,867,653.81 and 32,758,179.21 is: 45,205,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,876,608.88 : 79,867,653.81 = 32,758,179.21 : x
  2. Step 2: Convert to fraction form
    57,876,608.88/79,867,653.81 = 32,758,179.21/x
  3. Step 3: Cross multiply
    57,876,608.88x = 79,867,653.81 × 32,758,179.21
  4. Step 4: Simplify right side
    57,876,608.88x = 2,616,318,916,590,219.50
  5. Step 5: Solve for x
    x = 2,616,318,916,590,219.50/57,876,608.88
  6. Step 6: Final answer
    x = 45,205,117.70

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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.