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Finding the Fourth Proportional to 156,848.96, 216,452.87 and 85,228.98

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Solution

The fourth proportional to 156,848.96, 216,452.87 and 85,228.98 is: 117,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,848.96 : 216,452.87 = 85,228.98 : x
  2. Step 2: Convert to fraction form
    156,848.96/216,452.87 = 85,228.98/x
  3. Step 3: Cross multiply
    156,848.96x = 216,452.87 × 85,228.98
  4. Step 4: Simplify right side
    156,848.96x = 18,448,056,902.03
  5. Step 5: Solve for x
    x = 18,448,056,902.03/156,848.96
  6. Step 6: Final answer
    x = 117,616.70

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1.5x scale

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.