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Finding the Fourth Proportional to 375,704.76, 563,643.54 and 122,993.40

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Solution

The fourth proportional to 375,704.76, 563,643.54 and 122,993.40 is: 184,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,704.76 : 563,643.54 = 122,993.40 : x
  2. Step 2: Convert to fraction form
    375,704.76/563,643.54 = 122,993.40/x
  3. Step 3: Cross multiply
    375,704.76x = 563,643.54 × 122,993.40
  4. Step 4: Simplify right side
    375,704.76x = 69,324,435,372.64
  5. Step 5: Solve for x
    x = 69,324,435,372.64/375,704.76
  6. Step 6: Final answer
    x = 184,518.38

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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.