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Finding the Fourth Proportional to 199,913.67, 299,988.63 and 73,642.50

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Solution

The fourth proportional to 199,913.67, 299,988.63 and 73,642.50 is: 110,507.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,913.67 : 299,988.63 = 73,642.50 : x
  2. Step 2: Convert to fraction form
    199,913.67/299,988.63 = 73,642.50/x
  3. Step 3: Cross multiply
    199,913.67x = 299,988.63 × 73,642.50
  4. Step 4: Simplify right side
    199,913.67x = 22,091,912,684.78
  5. Step 5: Solve for x
    x = 22,091,912,684.78/199,913.67
  6. Step 6: Final answer
    x = 110,507.26

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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.