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Finding the Fourth Proportional to 110,703.60, 166,028.40 and 31,809.60

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Solution

The fourth proportional to 110,703.60, 166,028.40 and 31,809.60 is: 47,706.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,703.60 : 166,028.40 = 31,809.60 : x
  2. Step 2: Convert to fraction form
    110,703.60/166,028.40 = 31,809.60/x
  3. Step 3: Cross multiply
    110,703.60x = 166,028.40 × 31,809.60
  4. Step 4: Simplify right side
    110,703.60x = 5,281,296,992.64
  5. Step 5: Solve for x
    x = 5,281,296,992.64/110,703.60
  6. Step 6: Final answer
    x = 47,706.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.