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Finding the Fourth Proportional to 445,489.84, 668,216.53 and 161,187.13

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Solution

The fourth proportional to 445,489.84, 668,216.53 and 161,187.13 is: 241,774.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,489.84 : 668,216.53 = 161,187.13 : x
  2. Step 2: Convert to fraction form
    445,489.84/668,216.53 = 161,187.13/x
  3. Step 3: Cross multiply
    445,489.84x = 668,216.53 × 161,187.13
  4. Step 4: Simplify right side
    445,489.84x = 107,707,904,689.26
  5. Step 5: Solve for x
    x = 107,707,904,689.26/445,489.84
  6. Step 6: Final answer
    x = 241,774.10

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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.