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Finding the Fourth Proportional to 356,583.96, 534,958.74 and 103,870.44

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Solution

The fourth proportional to 356,583.96, 534,958.74 and 103,870.44 is: 155,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,583.96 : 534,958.74 = 103,870.44 : x
  2. Step 2: Convert to fraction form
    356,583.96/534,958.74 = 103,870.44/x
  3. Step 3: Cross multiply
    356,583.96x = 534,958.74 × 103,870.44
  4. Step 4: Simplify right side
    356,583.96x = 55,566,399,705.65
  5. Step 5: Solve for x
    x = 55,566,399,705.65/356,583.96
  6. Step 6: Final answer
    x = 155,829.78

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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.