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Finding the Fourth Proportional to 348,891.12, 481,544.73 and 212,895.90

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Solution

The fourth proportional to 348,891.12, 481,544.73 and 212,895.90 is: 293,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,891.12 : 481,544.73 = 212,895.90 : x
  2. Step 2: Convert to fraction form
    348,891.12/481,544.73 = 212,895.90/x
  3. Step 3: Cross multiply
    348,891.12x = 481,544.73 × 212,895.90
  4. Step 4: Simplify right side
    348,891.12x = 102,518,898,683.61
  5. Step 5: Solve for x
    x = 102,518,898,683.61/348,891.12
  6. Step 6: Final answer
    x = 293,842.10

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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.