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Finding the Fourth Proportional to 407,180.45, 610,775.38 and 122,873.47

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Solution

The fourth proportional to 407,180.45, 610,775.38 and 122,873.47 is: 184,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,180.45 : 610,775.38 = 122,873.47 : x
  2. Step 2: Convert to fraction form
    407,180.45/610,775.38 = 122,873.47/x
  3. Step 3: Cross multiply
    407,180.45x = 610,775.38 × 122,873.47
  4. Step 4: Simplify right side
    407,180.45x = 75,048,090,331.17
  5. Step 5: Solve for x
    x = 75,048,090,331.17/407,180.45
  6. Step 6: Final answer
    x = 184,311.62

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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.