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Finding the Fourth Proportional to 79,458.48, 109,653.32 and 43,648.88

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Solution

The fourth proportional to 79,458.48, 109,653.32 and 43,648.88 is: 60,235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,458.48 : 109,653.32 = 43,648.88 : x
  2. Step 2: Convert to fraction form
    79,458.48/109,653.32 = 43,648.88/x
  3. Step 3: Cross multiply
    79,458.48x = 109,653.32 × 43,648.88
  4. Step 4: Simplify right side
    79,458.48x = 4,786,244,606.28
  5. Step 5: Solve for x
    x = 4,786,244,606.28/79,458.48
  6. Step 6: Final answer
    x = 60,235.79

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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.