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Finding the Fourth Proportional to 118,794.22, 163,938.66 and 67,805.94

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Solution

The fourth proportional to 118,794.22, 163,938.66 and 67,805.94 is: 93,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,794.22 : 163,938.66 = 67,805.94 : x
  2. Step 2: Convert to fraction form
    118,794.22/163,938.66 = 67,805.94/x
  3. Step 3: Cross multiply
    118,794.22x = 163,938.66 × 67,805.94
  4. Step 4: Simplify right side
    118,794.22x = 11,116,014,943.64
  5. Step 5: Solve for x
    x = 11,116,014,943.64/118,794.22
  6. Step 6: Final answer
    x = 93,573.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.