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Finding the Fourth Proportional to 74,299.48, 102,445.50 and 60,821.08

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Solution

The fourth proportional to 74,299.48, 102,445.50 and 60,821.08 is: 83,861.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,299.48 : 102,445.50 = 60,821.08 : x
  2. Step 2: Convert to fraction form
    74,299.48/102,445.50 = 60,821.08/x
  3. Step 3: Cross multiply
    74,299.48x = 102,445.50 × 60,821.08
  4. Step 4: Simplify right side
    74,299.48x = 6,230,845,951.14
  5. Step 5: Solve for x
    x = 6,230,845,951.14/74,299.48
  6. Step 6: Final answer
    x = 83,861.23

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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.