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Finding the Fourth Proportional to 264,957,759.72, 397,495,915.51 and 80,739,653.51

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Solution

The fourth proportional to 264,957,759.72, 397,495,915.51 and 80,739,653.51 is: 121,127,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,957,759.72 : 397,495,915.51 = 80,739,653.51 : x
  2. Step 2: Convert to fraction form
    264,957,759.72/397,495,915.51 = 80,739,653.51/x
  3. Step 3: Cross multiply
    264,957,759.72x = 397,495,915.51 × 80,739,653.51
  4. Step 4: Simplify right side
    264,957,759.72x = 32,093,682,489,521,692
  5. Step 5: Solve for x
    x = 32,093,682,489,521,692/264,957,759.72
  6. Step 6: Final answer
    x = 121,127,543.21

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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.