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Finding the Fourth Proportional to 117,660.89, 162,385.85 and 69,914.27

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Solution

The fourth proportional to 117,660.89, 162,385.85 and 69,914.27 is: 96,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,660.89 : 162,385.85 = 69,914.27 : x
  2. Step 2: Convert to fraction form
    117,660.89/162,385.85 = 69,914.27/x
  3. Step 3: Cross multiply
    117,660.89x = 162,385.85 × 69,914.27
  4. Step 4: Simplify right side
    117,660.89x = 11,353,087,811.51
  5. Step 5: Solve for x
    x = 11,353,087,811.51/117,660.89
  6. Step 6: Final answer
    x = 96,489.90

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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.