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Finding the Fourth Proportional to 79,077.84, 118,611.64 and 29,828.56

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Solution

The fourth proportional to 79,077.84, 118,611.64 and 29,828.56 is: 44,740.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.84 : 118,611.64 = 29,828.56 : x
  2. Step 2: Convert to fraction form
    79,077.84/118,611.64 = 29,828.56/x
  3. Step 3: Cross multiply
    79,077.84x = 118,611.64 × 29,828.56
  4. Step 4: Simplify right side
    79,077.84x = 3,538,014,420.44
  5. Step 5: Solve for x
    x = 3,538,014,420.44/79,077.84
  6. Step 6: Final answer
    x = 44,740.91

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1.5x scale

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.