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Finding the Fourth Proportional to 424,468.53, 636,483.69 and 124,910.21

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Solution

The fourth proportional to 424,468.53, 636,483.69 and 124,910.21 is: 187,300.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,468.53 : 636,483.69 = 124,910.21 : x
  2. Step 2: Convert to fraction form
    424,468.53/636,483.69 = 124,910.21/x
  3. Step 3: Cross multiply
    424,468.53x = 636,483.69 × 124,910.21
  4. Step 4: Simplify right side
    424,468.53x = 79,503,312,970.68
  5. Step 5: Solve for x
    x = 79,503,312,970.68/424,468.53
  6. Step 6: Final answer
    x = 187,300.84

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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.