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Finding the Fourth Proportional to 603,992.84, 905,986.56 and 154,712.84

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Solution

The fourth proportional to 603,992.84, 905,986.56 and 154,712.84 is: 232,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,992.84 : 905,986.56 = 154,712.84 : x
  2. Step 2: Convert to fraction form
    603,992.84/905,986.56 = 154,712.84/x
  3. Step 3: Cross multiply
    603,992.84x = 905,986.56 × 154,712.84
  4. Step 4: Simplify right side
    603,992.84x = 140,167,753,699.43
  5. Step 5: Solve for x
    x = 140,167,753,699.43/603,992.84
  6. Step 6: Final answer
    x = 232,068.57

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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.