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Finding the Fourth Proportional to 123,024.21, 169,772.64 and 69,326.48

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Solution

The fourth proportional to 123,024.21, 169,772.64 and 69,326.48 is: 95,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,024.21 : 169,772.64 = 69,326.48 : x
  2. Step 2: Convert to fraction form
    123,024.21/169,772.64 = 69,326.48/x
  3. Step 3: Cross multiply
    123,024.21x = 169,772.64 × 69,326.48
  4. Step 4: Simplify right side
    123,024.21x = 11,769,738,682.64
  5. Step 5: Solve for x
    x = 11,769,738,682.64/123,024.21
  6. Step 6: Final answer
    x = 95,670.10

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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.