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Finding the Fourth Proportional to 118,924.72, 164,114.76 and 68,622.64

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Solution

The fourth proportional to 118,924.72, 164,114.76 and 68,622.64 is: 94,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,924.72 : 164,114.76 = 68,622.64 : x
  2. Step 2: Convert to fraction form
    118,924.72/164,114.76 = 68,622.64/x
  3. Step 3: Cross multiply
    118,924.72x = 164,114.76 × 68,622.64
  4. Step 4: Simplify right side
    118,924.72x = 11,261,988,094.17
  5. Step 5: Solve for x
    x = 11,261,988,094.17/118,924.72
  6. Step 6: Final answer
    x = 94,698.46

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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.