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Finding the Fourth Proportional to 113,175.55, 156,181.48 and 62,188.82

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Solution

The fourth proportional to 113,175.55, 156,181.48 and 62,188.82 is: 85,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,175.55 : 156,181.48 = 62,188.82 : x
  2. Step 2: Convert to fraction form
    113,175.55/156,181.48 = 62,188.82/x
  3. Step 3: Cross multiply
    113,175.55x = 156,181.48 × 62,188.82
  4. Step 4: Simplify right side
    113,175.55x = 9,712,741,947.05
  5. Step 5: Solve for x
    x = 9,712,741,947.05/113,175.55
  6. Step 6: Final answer
    x = 85,820.14

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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.