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Finding the Fourth Proportional to 199,386.82, 299,110.17 and 64,405.81

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Solution

The fourth proportional to 199,386.82, 299,110.17 and 64,405.81 is: 96,618.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,386.82 : 299,110.17 = 64,405.81 : x
  2. Step 2: Convert to fraction form
    199,386.82/299,110.17 = 64,405.81/x
  3. Step 3: Cross multiply
    199,386.82x = 299,110.17 × 64,405.81
  4. Step 4: Simplify right side
    199,386.82x = 19,264,432,778.09
  5. Step 5: Solve for x
    x = 19,264,432,778.09/199,386.82
  6. Step 6: Final answer
    x = 96,618.39

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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.