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Finding the Fourth Proportional to 55,330.98, 76,351.60 and 31,452.98

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Solution

The fourth proportional to 55,330.98, 76,351.60 and 31,452.98 is: 43,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,330.98 : 76,351.60 = 31,452.98 : x
  2. Step 2: Convert to fraction form
    55,330.98/76,351.60 = 31,452.98/x
  3. Step 3: Cross multiply
    55,330.98x = 76,351.60 × 31,452.98
  4. Step 4: Simplify right side
    55,330.98x = 2,401,485,347.77
  5. Step 5: Solve for x
    x = 2,401,485,347.77/55,330.98
  6. Step 6: Final answer
    x = 43,402.18

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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.