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Finding the Fourth Proportional to 424,196.25, 636,294.51 and 124,676.88

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Solution

The fourth proportional to 424,196.25, 636,294.51 and 124,676.88 is: 187,015.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,196.25 : 636,294.51 = 124,676.88 : x
  2. Step 2: Convert to fraction form
    424,196.25/636,294.51 = 124,676.88/x
  3. Step 3: Cross multiply
    424,196.25x = 636,294.51 × 124,676.88
  4. Step 4: Simplify right side
    424,196.25x = 79,331,214,267.93
  5. Step 5: Solve for x
    x = 79,331,214,267.93/424,196.25
  6. Step 6: Final answer
    x = 187,015.36

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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.