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Finding the Fourth Proportional to 178,066.44, 266,915.16 and 111,353.40

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Solution

The fourth proportional to 178,066.44, 266,915.16 and 111,353.40 is: 166,914.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,066.44 : 266,915.16 = 111,353.40 : x
  2. Step 2: Convert to fraction form
    178,066.44/266,915.16 = 111,353.40/x
  3. Step 3: Cross multiply
    178,066.44x = 266,915.16 × 111,353.40
  4. Step 4: Simplify right side
    178,066.44x = 29,721,910,577.54
  5. Step 5: Solve for x
    x = 29,721,910,577.54/178,066.44
  6. Step 6: Final answer
    x = 166,914.72

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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.