Home / 199,739.58-299,610.51-66,619.45

Finding the Fourth Proportional to 199,739.58, 299,610.51 and 66,619.45

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Solution

The fourth proportional to 199,739.58, 299,610.51 and 66,619.45 is: 99,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,739.58 : 299,610.51 = 66,619.45 : x
  2. Step 2: Convert to fraction form
    199,739.58/299,610.51 = 66,619.45/x
  3. Step 3: Cross multiply
    199,739.58x = 299,610.51 × 66,619.45
  4. Step 4: Simplify right side
    199,739.58x = 19,959,887,390.42
  5. Step 5: Solve for x
    x = 19,959,887,390.42/199,739.58
  6. Step 6: Final answer
    x = 99,929.56

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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.