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Finding the Fourth Proportional to 55,333.89, 76,365.81 and 31,460.52

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Solution

The fourth proportional to 55,333.89, 76,365.81 and 31,460.52 is: 43,418.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,333.89 : 76,365.81 = 31,460.52 : x
  2. Step 2: Convert to fraction form
    55,333.89/76,365.81 = 31,460.52/x
  3. Step 3: Cross multiply
    55,333.89x = 76,365.81 × 31,460.52
  4. Step 4: Simplify right side
    55,333.89x = 2,402,508,092.82
  5. Step 5: Solve for x
    x = 2,402,508,092.82/55,333.89
  6. Step 6: Final answer
    x = 43,418.38

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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.