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Finding the Fourth Proportional to 407,879.25, 612,026.18 and 183,193.85

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Solution

The fourth proportional to 407,879.25, 612,026.18 and 183,193.85 is: 274,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,879.25 : 612,026.18 = 183,193.85 : x
  2. Step 2: Convert to fraction form
    407,879.25/612,026.18 = 183,193.85/x
  3. Step 3: Cross multiply
    407,879.25x = 612,026.18 × 183,193.85
  4. Step 4: Simplify right side
    407,879.25x = 112,119,433,516.07
  5. Step 5: Solve for x
    x = 112,119,433,516.07/407,879.25
  6. Step 6: Final answer
    x = 274,883.89

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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.