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Finding the Fourth Proportional to 70,256.44, 105,426.24 and 25,914.36

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Solution

The fourth proportional to 70,256.44, 105,426.24 and 25,914.36 is: 38,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,256.44 : 105,426.24 = 25,914.36 : x
  2. Step 2: Convert to fraction form
    70,256.44/105,426.24 = 25,914.36/x
  3. Step 3: Cross multiply
    70,256.44x = 105,426.24 × 25,914.36
  4. Step 4: Simplify right side
    70,256.44x = 2,732,053,536.81
  5. Step 5: Solve for x
    x = 2,732,053,536.81/70,256.44
  6. Step 6: Final answer
    x = 38,886.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.