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Finding the Fourth Proportional to 178,840.60, 268,163.70 and 73,670.20

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Solution

The fourth proportional to 178,840.60, 268,163.70 and 73,670.20 is: 110,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,840.60 : 268,163.70 = 73,670.20 : x
  2. Step 2: Convert to fraction form
    178,840.60/268,163.70 = 73,670.20/x
  3. Step 3: Cross multiply
    178,840.60x = 268,163.70 × 73,670.20
  4. Step 4: Simplify right side
    178,840.60x = 19,755,673,411.74
  5. Step 5: Solve for x
    x = 19,755,673,411.74/178,840.60
  6. Step 6: Final answer
    x = 110,465.26

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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.