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Finding the Fourth Proportional to 303,466.18, 418,720.81 and 174,379.71

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Solution

The fourth proportional to 303,466.18, 418,720.81 and 174,379.71 is: 240,608.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,466.18 : 418,720.81 = 174,379.71 : x
  2. Step 2: Convert to fraction form
    303,466.18/418,720.81 = 174,379.71/x
  3. Step 3: Cross multiply
    303,466.18x = 418,720.81 × 174,379.71
  4. Step 4: Simplify right side
    303,466.18x = 73,016,413,418.77
  5. Step 5: Solve for x
    x = 73,016,413,418.77/303,466.18
  6. Step 6: Final answer
    x = 240,608.08

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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.