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Finding the Fourth Proportional to 92,577.76, 127,661.76 and 79,193.32

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Solution

The fourth proportional to 92,577.76, 127,661.76 and 79,193.32 is: 109,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,577.76 : 127,661.76 = 79,193.32 : x
  2. Step 2: Convert to fraction form
    92,577.76/127,661.76 = 79,193.32/x
  3. Step 3: Cross multiply
    92,577.76x = 127,661.76 × 79,193.32
  4. Step 4: Simplify right side
    92,577.76x = 10,109,958,611.44
  5. Step 5: Solve for x
    x = 10,109,958,611.44/92,577.76
  6. Step 6: Final answer
    x = 109,205.05

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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.