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Finding the Fourth Proportional to 271,602.55, 374,724.61 and 156,865.96

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Solution

The fourth proportional to 271,602.55, 374,724.61 and 156,865.96 is: 216,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,602.55 : 374,724.61 = 156,865.96 : x
  2. Step 2: Convert to fraction form
    271,602.55/374,724.61 = 156,865.96/x
  3. Step 3: Cross multiply
    271,602.55x = 374,724.61 × 156,865.96
  4. Step 4: Simplify right side
    271,602.55x = 58,781,535,683.28
  5. Step 5: Solve for x
    x = 58,781,535,683.28/271,602.55
  6. Step 6: Final answer
    x = 216,424.83

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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.