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Finding the Fourth Proportional to 199,779.93, 299,570.81 and 73,415.07

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Solution

The fourth proportional to 199,779.93, 299,570.81 and 73,415.07 is: 110,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,779.93 : 299,570.81 = 73,415.07 : x
  2. Step 2: Convert to fraction form
    199,779.93/299,570.81 = 73,415.07/x
  3. Step 3: Cross multiply
    199,779.93x = 299,570.81 × 73,415.07
  4. Step 4: Simplify right side
    199,779.93x = 21,993,011,619.03
  5. Step 5: Solve for x
    x = 21,993,011,619.03/199,779.93
  6. Step 6: Final answer
    x = 110,086.19

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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.