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Finding the Fourth Proportional to 178,675.62, 268,019.35 and 89,880.74

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Solution

The fourth proportional to 178,675.62, 268,019.35 and 89,880.74 is: 134,824.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,675.62 : 268,019.35 = 89,880.74 : x
  2. Step 2: Convert to fraction form
    178,675.62/268,019.35 = 89,880.74/x
  3. Step 3: Cross multiply
    178,675.62x = 268,019.35 × 89,880.74
  4. Step 4: Simplify right side
    178,675.62x = 24,089,777,512.32
  5. Step 5: Solve for x
    x = 24,089,777,512.32/178,675.62
  6. Step 6: Final answer
    x = 134,824.09

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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.