Home / 199,738.58-299,609.01-66,618.45

Finding the Fourth Proportional to 199,738.58, 299,609.01 and 66,618.45

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Solution

The fourth proportional to 199,738.58, 299,609.01 and 66,618.45 is: 99,928.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,738.58 : 299,609.01 = 66,618.45 : x
  2. Step 2: Convert to fraction form
    199,738.58/299,609.01 = 66,618.45/x
  3. Step 3: Cross multiply
    199,738.58x = 299,609.01 × 66,618.45
  4. Step 4: Simplify right side
    199,738.58x = 19,959,487,852.23
  5. Step 5: Solve for x
    x = 19,959,487,852.23/199,738.58
  6. Step 6: Final answer
    x = 99,928.06

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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.