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Finding the Fourth Proportional to 79,322.54, 109,465.27 and 43,512.84

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Solution

The fourth proportional to 79,322.54, 109,465.27 and 43,512.84 is: 60,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,322.54 : 109,465.27 = 43,512.84 : x
  2. Step 2: Convert to fraction form
    79,322.54/109,465.27 = 43,512.84/x
  3. Step 3: Cross multiply
    79,322.54x = 109,465.27 × 43,512.84
  4. Step 4: Simplify right side
    79,322.54x = 4,763,144,670.28
  5. Step 5: Solve for x
    x = 4,763,144,670.28/79,322.54
  6. Step 6: Final answer
    x = 60,047.81

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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.