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Finding the Fourth Proportional to 85,094.64, 116,937.36 and 81,191.88

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Solution

The fourth proportional to 85,094.64, 116,937.36 and 81,191.88 is: 111,574.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,094.64 : 116,937.36 = 81,191.88 : x
  2. Step 2: Convert to fraction form
    85,094.64/116,937.36 = 81,191.88/x
  3. Step 3: Cross multiply
    85,094.64x = 116,937.36 × 81,191.88
  4. Step 4: Simplify right side
    85,094.64x = 9,494,364,100.64
  5. Step 5: Solve for x
    x = 9,494,364,100.64/85,094.64
  6. Step 6: Final answer
    x = 111,574.17

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.