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Finding the Fourth Proportional to 111,276.36, 166,915.98 and 36,396

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Solution

The fourth proportional to 111,276.36, 166,915.98 and 36,396 is: 54,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,276.36 : 166,915.98 = 36,396 : x
  2. Step 2: Convert to fraction form
    111,276.36/166,915.98 = 36,396/x
  3. Step 3: Cross multiply
    111,276.36x = 166,915.98 × 36,396
  4. Step 4: Simplify right side
    111,276.36x = 6,075,074,008.08
  5. Step 5: Solve for x
    x = 6,075,074,008.08/111,276.36
  6. Step 6: Final answer
    x = 54,594.47

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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.