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Finding the Fourth Proportional to 178,750.44, 268,125.39 and 45,630.72

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Solution

The fourth proportional to 178,750.44, 268,125.39 and 45,630.72 is: 68,446.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,750.44 : 268,125.39 = 45,630.72 : x
  2. Step 2: Convert to fraction form
    178,750.44/268,125.39 = 45,630.72/x
  3. Step 3: Cross multiply
    178,750.44x = 268,125.39 × 45,630.72
  4. Step 4: Simplify right side
    178,750.44x = 12,234,754,595.98
  5. Step 5: Solve for x
    x = 12,234,754,595.98/178,750.44
  6. Step 6: Final answer
    x = 68,446.01

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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.