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Finding the Fourth Proportional to 68,902.64, 95,069.40 and 39,094.64

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Solution

The fourth proportional to 68,902.64, 95,069.40 and 39,094.64 is: 53,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,902.64 : 95,069.40 = 39,094.64 : x
  2. Step 2: Convert to fraction form
    68,902.64/95,069.40 = 39,094.64/x
  3. Step 3: Cross multiply
    68,902.64x = 95,069.40 × 39,094.64
  4. Step 4: Simplify right side
    68,902.64x = 3,716,703,968.02
  5. Step 5: Solve for x
    x = 3,716,703,968.02/68,902.64
  6. Step 6: Final answer
    x = 53,941.39

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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.