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Finding the Fourth Proportional to 199,877.94, 299,731.55 and 115,696.22

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Solution

The fourth proportional to 199,877.94, 299,731.55 and 115,696.22 is: 173,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,877.94 : 299,731.55 = 115,696.22 : x
  2. Step 2: Convert to fraction form
    199,877.94/299,731.55 = 115,696.22/x
  3. Step 3: Cross multiply
    199,877.94x = 299,731.55 × 115,696.22
  4. Step 4: Simplify right side
    199,877.94x = 34,677,805,272.60
  5. Step 5: Solve for x
    x = 34,677,805,272.60/199,877.94
  6. Step 6: Final answer
    x = 173,494.91

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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.