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Finding the Fourth Proportional to 156,617.39, 216,169.08 and 92,991.89

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Solution

The fourth proportional to 156,617.39, 216,169.08 and 92,991.89 is: 128,350.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,617.39 : 216,169.08 = 92,991.89 : x
  2. Step 2: Convert to fraction form
    156,617.39/216,169.08 = 92,991.89/x
  3. Step 3: Cross multiply
    156,617.39x = 216,169.08 × 92,991.89
  4. Step 4: Simplify right side
    156,617.39x = 20,101,971,308.76
  5. Step 5: Solve for x
    x = 20,101,971,308.76/156,617.39
  6. Step 6: Final answer
    x = 128,350.83

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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.