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Finding the Fourth Proportional to 102,765.44, 141,820.44 and 59,744.72

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Solution

The fourth proportional to 102,765.44, 141,820.44 and 59,744.72 is: 82,450.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,765.44 : 141,820.44 = 59,744.72 : x
  2. Step 2: Convert to fraction form
    102,765.44/141,820.44 = 59,744.72/x
  3. Step 3: Cross multiply
    102,765.44x = 141,820.44 × 59,744.72
  4. Step 4: Simplify right side
    102,765.44x = 8,473,022,478.08
  5. Step 5: Solve for x
    x = 8,473,022,478.08/102,765.44
  6. Step 6: Final answer
    x = 82,450.12

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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.