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Finding the Fourth Proportional to 103,674.72, 155,506.62 and 51,066.44

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Solution

The fourth proportional to 103,674.72, 155,506.62 and 51,066.44 is: 76,596.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,674.72 : 155,506.62 = 51,066.44 : x
  2. Step 2: Convert to fraction form
    103,674.72/155,506.62 = 51,066.44/x
  3. Step 3: Cross multiply
    103,674.72x = 155,506.62 × 51,066.44
  4. Step 4: Simplify right side
    103,674.72x = 7,941,169,479.83
  5. Step 5: Solve for x
    x = 7,941,169,479.83/103,674.72
  6. Step 6: Final answer
    x = 76,596.97

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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.