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Finding the Fourth Proportional to 79,460.32, 109,653.70 and 43,649.52

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Solution

The fourth proportional to 79,460.32, 109,653.70 and 43,649.52 is: 60,235.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,460.32 : 109,653.70 = 43,649.52 : x
  2. Step 2: Convert to fraction form
    79,460.32/109,653.70 = 43,649.52/x
  3. Step 3: Cross multiply
    79,460.32x = 109,653.70 × 43,649.52
  4. Step 4: Simplify right side
    79,460.32x = 4,786,331,371.22
  5. Step 5: Solve for x
    x = 4,786,331,371.22/79,460.32
  6. Step 6: Final answer
    x = 60,235.49

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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.