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Finding the Fourth Proportional to 70,036.64, 96,619.28 and 43,169.34

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Solution

The fourth proportional to 70,036.64, 96,619.28 and 43,169.34 is: 59,554.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,036.64 : 96,619.28 = 43,169.34 : x
  2. Step 2: Convert to fraction form
    70,036.64/96,619.28 = 43,169.34/x
  3. Step 3: Cross multiply
    70,036.64x = 96,619.28 × 43,169.34
  4. Step 4: Simplify right side
    70,036.64x = 4,170,990,548.88
  5. Step 5: Solve for x
    x = 4,170,990,548.88/70,036.64
  6. Step 6: Final answer
    x = 59,554.41

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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.