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Finding the Fourth Proportional to 373,185.57, 514,976.66 and 212,018.25

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Solution

The fourth proportional to 373,185.57, 514,976.66 and 212,018.25 is: 292,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,185.57 : 514,976.66 = 212,018.25 : x
  2. Step 2: Convert to fraction form
    373,185.57/514,976.66 = 212,018.25/x
  3. Step 3: Cross multiply
    373,185.57x = 514,976.66 × 212,018.25
  4. Step 4: Simplify right side
    373,185.57x = 109,184,449,183.95
  5. Step 5: Solve for x
    x = 109,184,449,183.95/373,185.57
  6. Step 6: Final answer
    x = 292,574.15

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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.