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Finding the Fourth Proportional to 108,611.28, 162,829.44 and 49,416.48

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Solution

The fourth proportional to 108,611.28, 162,829.44 and 49,416.48 is: 74,084.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,611.28 : 162,829.44 = 49,416.48 : x
  2. Step 2: Convert to fraction form
    108,611.28/162,829.44 = 49,416.48/x
  3. Step 3: Cross multiply
    108,611.28x = 162,829.44 × 49,416.48
  4. Step 4: Simplify right side
    108,611.28x = 8,046,457,765.17
  5. Step 5: Solve for x
    x = 8,046,457,765.17/108,611.28
  6. Step 6: Final answer
    x = 74,084.92

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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.