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Finding the Fourth Proportional to 122,058.80, 183,021.47 and 96,919.80

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Solution

The fourth proportional to 122,058.80, 183,021.47 and 96,919.80 is: 145,326.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,058.80 : 183,021.47 = 96,919.80 : x
  2. Step 2: Convert to fraction form
    122,058.80/183,021.47 = 96,919.80/x
  3. Step 3: Cross multiply
    122,058.80x = 183,021.47 × 96,919.80
  4. Step 4: Simplify right side
    122,058.80x = 17,738,403,783.51
  5. Step 5: Solve for x
    x = 17,738,403,783.51/122,058.80
  6. Step 6: Final answer
    x = 145,326.71

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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.