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Finding the Fourth Proportional to 79,397.36, 118,940.35 and 46,047.39

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Solution

The fourth proportional to 79,397.36, 118,940.35 and 46,047.39 is: 68,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,397.36 : 118,940.35 = 46,047.39 : x
  2. Step 2: Convert to fraction form
    79,397.36/118,940.35 = 46,047.39/x
  3. Step 3: Cross multiply
    79,397.36x = 118,940.35 × 46,047.39
  4. Step 4: Simplify right side
    79,397.36x = 5,476,892,208.38
  5. Step 5: Solve for x
    x = 5,476,892,208.38/79,397.36
  6. Step 6: Final answer
    x = 68,980.78

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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.