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Finding the Fourth Proportional to 79,458.49, 109,606.90 and 47,608.93

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Solution

The fourth proportional to 79,458.49, 109,606.90 and 47,608.93 is: 65,672.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,458.49 : 109,606.90 = 47,608.93 : x
  2. Step 2: Convert to fraction form
    79,458.49/109,606.90 = 47,608.93/x
  3. Step 3: Cross multiply
    79,458.49x = 109,606.90 × 47,608.93
  4. Step 4: Simplify right side
    79,458.49x = 5,218,267,202.97
  5. Step 5: Solve for x
    x = 5,218,267,202.97/79,458.49
  6. Step 6: Final answer
    x = 65,672.88

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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.