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Finding the Fourth Proportional to 72,076.36, 99,461.08 and 41,859.60

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Solution

The fourth proportional to 72,076.36, 99,461.08 and 41,859.60 is: 57,763.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,076.36 : 99,461.08 = 41,859.60 : x
  2. Step 2: Convert to fraction form
    72,076.36/99,461.08 = 41,859.60/x
  3. Step 3: Cross multiply
    72,076.36x = 99,461.08 × 41,859.60
  4. Step 4: Simplify right side
    72,076.36x = 4,163,401,024.37
  5. Step 5: Solve for x
    x = 4,163,401,024.37/72,076.36
  6. Step 6: Final answer
    x = 57,763.75

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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.