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Finding the Fourth Proportional to 70,263.26, 105,436.41 and 25,921.16

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Solution

The fourth proportional to 70,263.26, 105,436.41 and 25,921.16 is: 38,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,263.26 : 105,436.41 = 25,921.16 : x
  2. Step 2: Convert to fraction form
    70,263.26/105,436.41 = 25,921.16/x
  3. Step 3: Cross multiply
    70,263.26x = 105,436.41 × 25,921.16
  4. Step 4: Simplify right side
    70,263.26x = 2,733,034,053.44
  5. Step 5: Solve for x
    x = 2,733,034,053.44/70,263.26
  6. Step 6: Final answer
    x = 38,897.06

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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.