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Finding the Fourth Proportional to 375,490.59, 563,361.63 and 122,782.74

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Solution

The fourth proportional to 375,490.59, 563,361.63 and 122,782.74 is: 184,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,490.59 : 563,361.63 = 122,782.74 : x
  2. Step 2: Convert to fraction form
    375,490.59/563,361.63 = 122,782.74/x
  3. Step 3: Cross multiply
    375,490.59x = 563,361.63 × 122,782.74
  4. Step 4: Simplify right side
    375,490.59x = 69,171,082,659.88
  5. Step 5: Solve for x
    x = 69,171,082,659.88/375,490.59
  6. Step 6: Final answer
    x = 184,215.22

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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.