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Finding the Fourth Proportional to 88,712.88, 133,030.44 and 33,270

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Solution

The fourth proportional to 88,712.88, 133,030.44 and 33,270 is: 49,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,712.88 : 133,030.44 = 33,270 : x
  2. Step 2: Convert to fraction form
    88,712.88/133,030.44 = 33,270/x
  3. Step 3: Cross multiply
    88,712.88x = 133,030.44 × 33,270
  4. Step 4: Simplify right side
    88,712.88x = 4,425,922,738.80
  5. Step 5: Solve for x
    x = 4,425,922,738.80/88,712.88
  6. Step 6: Final answer
    x = 49,890.42

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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.