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Finding the Fourth Proportional to 117,645.96, 162,325.20 and 66,654.24

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Solution

The fourth proportional to 117,645.96, 162,325.20 and 66,654.24 is: 91,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,645.96 : 162,325.20 = 66,654.24 : x
  2. Step 2: Convert to fraction form
    117,645.96/162,325.20 = 66,654.24/x
  3. Step 3: Cross multiply
    117,645.96x = 162,325.20 × 66,654.24
  4. Step 4: Simplify right side
    117,645.96x = 10,819,662,838.85
  5. Step 5: Solve for x
    x = 10,819,662,838.85/117,645.96
  6. Step 6: Final answer
    x = 91,967.99

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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.