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Finding the Fourth Proportional to 78,798.22, 118,216.01 and 22,636.97

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Solution

The fourth proportional to 78,798.22, 118,216.01 and 22,636.97 is: 33,960.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,798.22 : 118,216.01 = 22,636.97 : x
  2. Step 2: Convert to fraction form
    78,798.22/118,216.01 = 22,636.97/x
  3. Step 3: Cross multiply
    78,798.22x = 118,216.01 × 22,636.97
  4. Step 4: Simplify right side
    78,798.22x = 2,676,052,053.38
  5. Step 5: Solve for x
    x = 2,676,052,053.38/78,798.22
  6. Step 6: Final answer
    x = 33,960.82

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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.