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Finding the Fourth Proportional to 178,881.78, 268,396.07 and 94,619.40

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Solution

The fourth proportional to 178,881.78, 268,396.07 and 94,619.40 is: 141,967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,881.78 : 268,396.07 = 94,619.40 : x
  2. Step 2: Convert to fraction form
    178,881.78/268,396.07 = 94,619.40/x
  3. Step 3: Cross multiply
    178,881.78x = 268,396.07 × 94,619.40
  4. Step 4: Simplify right side
    178,881.78x = 25,395,474,632.66
  5. Step 5: Solve for x
    x = 25,395,474,632.66/178,881.78
  6. Step 6: Final answer
    x = 141,967.92

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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.