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Finding the Fourth Proportional to 75,940.40, 104,036.62 and 73,100.82

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Solution

The fourth proportional to 75,940.40, 104,036.62 and 73,100.82 is: 100,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,940.40 : 104,036.62 = 73,100.82 : x
  2. Step 2: Convert to fraction form
    75,940.40/104,036.62 = 73,100.82/x
  3. Step 3: Cross multiply
    75,940.40x = 104,036.62 × 73,100.82
  4. Step 4: Simplify right side
    75,940.40x = 7,605,162,232.03
  5. Step 5: Solve for x
    x = 7,605,162,232.03/75,940.40
  6. Step 6: Final answer
    x = 100,146.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.