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Finding the Fourth Proportional to 252,878.63, 379,317.94 and 65,890.13

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Solution

The fourth proportional to 252,878.63, 379,317.94 and 65,890.13 is: 98,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,878.63 : 379,317.94 = 65,890.13 : x
  2. Step 2: Convert to fraction form
    252,878.63/379,317.94 = 65,890.13/x
  3. Step 3: Cross multiply
    252,878.63x = 379,317.94 × 65,890.13
  4. Step 4: Simplify right side
    252,878.63x = 24,993,306,316.62
  5. Step 5: Solve for x
    x = 24,993,306,316.62/252,878.63
  6. Step 6: Final answer
    x = 98,835.19

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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.