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Finding the Fourth Proportional to 117,600.80, 176,401.20 and 94,272.80

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Solution

The fourth proportional to 117,600.80, 176,401.20 and 94,272.80 is: 141,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,600.80 : 176,401.20 = 94,272.80 : x
  2. Step 2: Convert to fraction form
    117,600.80/176,401.20 = 94,272.80/x
  3. Step 3: Cross multiply
    117,600.80x = 176,401.20 × 94,272.80
  4. Step 4: Simplify right side
    117,600.80x = 16,629,835,047.36
  5. Step 5: Solve for x
    x = 16,629,835,047.36/117,600.80
  6. Step 6: Final answer
    x = 141,409.20

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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.