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Finding the Fourth Proportional to 79,270.89, 109,392.41 and 43,461.05

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Solution

The fourth proportional to 79,270.89, 109,392.41 and 43,461.05 is: 59,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,270.89 : 109,392.41 = 43,461.05 : x
  2. Step 2: Convert to fraction form
    79,270.89/109,392.41 = 43,461.05/x
  3. Step 3: Cross multiply
    79,270.89x = 109,392.41 × 43,461.05
  4. Step 4: Simplify right side
    79,270.89x = 4,754,308,236.36
  5. Step 5: Solve for x
    x = 4,754,308,236.36/79,270.89
  6. Step 6: Final answer
    x = 59,975.46

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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.