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Finding the Fourth Proportional to 263,703.95, 363,903.96 and 154,806.54

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Solution

The fourth proportional to 263,703.95, 363,903.96 and 154,806.54 is: 213,628.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,703.95 : 363,903.96 = 154,806.54 : x
  2. Step 2: Convert to fraction form
    263,703.95/363,903.96 = 154,806.54/x
  3. Step 3: Cross multiply
    263,703.95x = 363,903.96 × 154,806.54
  4. Step 4: Simplify right side
    263,703.95x = 56,334,713,331.96
  5. Step 5: Solve for x
    x = 56,334,713,331.96/263,703.95
  6. Step 6: Final answer
    x = 213,628.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.