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Finding the Fourth Proportional to 97,676.85, 134,820.63 and 57,403.59

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Solution

The fourth proportional to 97,676.85, 134,820.63 and 57,403.59 is: 79,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,676.85 : 134,820.63 = 57,403.59 : x
  2. Step 2: Convert to fraction form
    97,676.85/134,820.63 = 57,403.59/x
  3. Step 3: Cross multiply
    97,676.85x = 134,820.63 × 57,403.59
  4. Step 4: Simplify right side
    97,676.85x = 7,739,188,168.06
  5. Step 5: Solve for x
    x = 7,739,188,168.06/97,676.85
  6. Step 6: Final answer
    x = 79,232.57

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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.