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Finding the Fourth Proportional to 79,157.66, 109,237.55 and 43,348.37

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Solution

The fourth proportional to 79,157.66, 109,237.55 and 43,348.37 is: 59,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,157.66 : 109,237.55 = 43,348.37 : x
  2. Step 2: Convert to fraction form
    79,157.66/109,237.55 = 43,348.37/x
  3. Step 3: Cross multiply
    79,157.66x = 109,237.55 × 43,348.37
  4. Step 4: Simplify right side
    79,157.66x = 4,735,268,972.36
  5. Step 5: Solve for x
    x = 4,735,268,972.36/79,157.66
  6. Step 6: Final answer
    x = 59,820.73

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1.5x scale

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.