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Finding the Fourth Proportional to 283,816.59, 391,669.94 and 154,754.01

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Solution

The fourth proportional to 283,816.59, 391,669.94 and 154,754.01 is: 213,562.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,816.59 : 391,669.94 = 154,754.01 : x
  2. Step 2: Convert to fraction form
    283,816.59/391,669.94 = 154,754.01/x
  3. Step 3: Cross multiply
    283,816.59x = 391,669.94 × 154,754.01
  4. Step 4: Simplify right side
    283,816.59x = 60,612,493,811.46
  5. Step 5: Solve for x
    x = 60,612,493,811.46/283,816.59
  6. Step 6: Final answer
    x = 213,562.19

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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.