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Finding the Fourth Proportional to 74,299.96, 102,531.93 and 45,217.41

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Solution

The fourth proportional to 74,299.96, 102,531.93 and 45,217.41 is: 62,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,299.96 : 102,531.93 = 45,217.41 : x
  2. Step 2: Convert to fraction form
    74,299.96/102,531.93 = 45,217.41/x
  3. Step 3: Cross multiply
    74,299.96x = 102,531.93 × 45,217.41
  4. Step 4: Simplify right side
    74,299.96x = 4,636,228,316.90
  5. Step 5: Solve for x
    x = 4,636,228,316.90/74,299.96
  6. Step 6: Final answer
    x = 62,398.80

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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.