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Finding the Fourth Proportional to 178,808.16, 268,241.40 and 60,486.48

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Solution

The fourth proportional to 178,808.16, 268,241.40 and 60,486.48 is: 90,739.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,808.16 : 268,241.40 = 60,486.48 : x
  2. Step 2: Convert to fraction form
    178,808.16/268,241.40 = 60,486.48/x
  3. Step 3: Cross multiply
    178,808.16x = 268,241.40 × 60,486.48
  4. Step 4: Simplify right side
    178,808.16x = 16,224,978,076.27
  5. Step 5: Solve for x
    x = 16,224,978,076.27/178,808.16
  6. Step 6: Final answer
    x = 90,739.58

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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.