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Finding the Fourth Proportional to 445,099.06, 667,705.18 and 141,384.87

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Solution

The fourth proportional to 445,099.06, 667,705.18 and 141,384.87 is: 212,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,099.06 : 667,705.18 = 141,384.87 : x
  2. Step 2: Convert to fraction form
    445,099.06/667,705.18 = 141,384.87/x
  3. Step 3: Cross multiply
    445,099.06x = 667,705.18 × 141,384.87
  4. Step 4: Simplify right side
    445,099.06x = 94,403,410,072.63
  5. Step 5: Solve for x
    x = 94,403,410,072.63/445,099.06
  6. Step 6: Final answer
    x = 212,095.28

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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.