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Finding the Fourth Proportional to 111,176.40, 166,764.60 and 44,648.40

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Solution

The fourth proportional to 111,176.40, 166,764.60 and 44,648.40 is: 66,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,176.40 : 166,764.60 = 44,648.40 : x
  2. Step 2: Convert to fraction form
    111,176.40/166,764.60 = 44,648.40/x
  3. Step 3: Cross multiply
    111,176.40x = 166,764.60 × 44,648.40
  4. Step 4: Simplify right side
    111,176.40x = 7,445,772,566.64
  5. Step 5: Solve for x
    x = 7,445,772,566.64/111,176.40
  6. Step 6: Final answer
    x = 66,972.60

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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.