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Finding the Fourth Proportional to 367,427.63, 551,141.85 and 145,811.63

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Solution

The fourth proportional to 367,427.63, 551,141.85 and 145,811.63 is: 218,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,427.63 : 551,141.85 = 145,811.63 : x
  2. Step 2: Convert to fraction form
    367,427.63/551,141.85 = 145,811.63/x
  3. Step 3: Cross multiply
    367,427.63x = 551,141.85 × 145,811.63
  4. Step 4: Simplify right side
    367,427.63x = 80,362,888,754.01
  5. Step 5: Solve for x
    x = 80,362,888,754.01/367,427.63
  6. Step 6: Final answer
    x = 218,717.60

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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.