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Finding the Fourth Proportional to 123,303.64, 184,963.81 and 43,331.89

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Solution

The fourth proportional to 123,303.64, 184,963.81 and 43,331.89 is: 65,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,303.64 : 184,963.81 = 43,331.89 : x
  2. Step 2: Convert to fraction form
    123,303.64/184,963.81 = 43,331.89/x
  3. Step 3: Cross multiply
    123,303.64x = 184,963.81 × 43,331.89
  4. Step 4: Simplify right side
    123,303.64x = 8,014,830,927.88
  5. Step 5: Solve for x
    x = 8,014,830,927.88/123,303.64
  6. Step 6: Final answer
    x = 65,000.76

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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.