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Finding the Fourth Proportional to 85,041.60, 127,493.28 and 29,676.48

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Solution

The fourth proportional to 85,041.60, 127,493.28 and 29,676.48 is: 44,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,041.60 : 127,493.28 = 29,676.48 : x
  2. Step 2: Convert to fraction form
    85,041.60/127,493.28 = 29,676.48/x
  3. Step 3: Cross multiply
    85,041.60x = 127,493.28 × 29,676.48
  4. Step 4: Simplify right side
    85,041.60x = 3,783,551,774.05
  5. Step 5: Solve for x
    x = 3,783,551,774.05/85,041.60
  6. Step 6: Final answer
    x = 44,490.60

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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.