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Finding the Fourth Proportional to 211,546.53, 317,349.54 and 61,797.78

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Solution

The fourth proportional to 211,546.53, 317,349.54 and 61,797.78 is: 92,705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,546.53 : 317,349.54 = 61,797.78 : x
  2. Step 2: Convert to fraction form
    211,546.53/317,349.54 = 61,797.78/x
  3. Step 3: Cross multiply
    211,546.53x = 317,349.54 × 61,797.78
  4. Step 4: Simplify right side
    211,546.53x = 19,611,497,056.02
  5. Step 5: Solve for x
    x = 19,611,497,056.02/211,546.53
  6. Step 6: Final answer
    x = 92,705.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.