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Finding the Fourth Proportional to 120,352.01, 166,088.36 and 65,906.47

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Solution

The fourth proportional to 120,352.01, 166,088.36 and 65,906.47 is: 90,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,352.01 : 166,088.36 = 65,906.47 : x
  2. Step 2: Convert to fraction form
    120,352.01/166,088.36 = 65,906.47/x
  3. Step 3: Cross multiply
    120,352.01x = 166,088.36 × 65,906.47
  4. Step 4: Simplify right side
    120,352.01x = 10,946,297,265.23
  5. Step 5: Solve for x
    x = 10,946,297,265.23/120,352.01
  6. Step 6: Final answer
    x = 90,952.35

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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.