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Finding the Fourth Proportional to 79,123.68, 118,693.44 and 29,216.88

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Solution

The fourth proportional to 79,123.68, 118,693.44 and 29,216.88 is: 43,828.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,123.68 : 118,693.44 = 29,216.88 : x
  2. Step 2: Convert to fraction form
    79,123.68/118,693.44 = 29,216.88/x
  3. Step 3: Cross multiply
    79,123.68x = 118,693.44 × 29,216.88
  4. Step 4: Simplify right side
    79,123.68x = 3,467,851,993.27
  5. Step 5: Solve for x
    x = 3,467,851,993.27/79,123.68
  6. Step 6: Final answer
    x = 43,828.24

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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.