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Finding the Fourth Proportional to 156,667.76, 216,200.97 and 85,047.27

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Solution

The fourth proportional to 156,667.76, 216,200.97 and 85,047.27 is: 117,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,667.76 : 216,200.97 = 85,047.27 : x
  2. Step 2: Convert to fraction form
    156,667.76/216,200.97 = 85,047.27/x
  3. Step 3: Cross multiply
    156,667.76x = 216,200.97 × 85,047.27
  4. Step 4: Simplify right side
    156,667.76x = 18,387,302,269.85
  5. Step 5: Solve for x
    x = 18,387,302,269.85/156,667.76
  6. Step 6: Final answer
    x = 117,364.94

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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.