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Finding the Fourth Proportional to 118,955.98, 164,144.08 and 67,972.02

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Solution

The fourth proportional to 118,955.98, 164,144.08 and 67,972.02 is: 93,792.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,955.98 : 164,144.08 = 67,972.02 : x
  2. Step 2: Convert to fraction form
    118,955.98/164,144.08 = 67,972.02/x
  3. Step 3: Cross multiply
    118,955.98x = 164,144.08 × 67,972.02
  4. Step 4: Simplify right side
    118,955.98x = 11,157,204,688.64
  5. Step 5: Solve for x
    x = 11,157,204,688.64/118,955.98
  6. Step 6: Final answer
    x = 93,792.72

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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.