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Finding the Fourth Proportional to 112,396.56, 154,946.36 and 69,347.30

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Solution

The fourth proportional to 112,396.56, 154,946.36 and 69,347.30 is: 95,600.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,396.56 : 154,946.36 = 69,347.30 : x
  2. Step 2: Convert to fraction form
    112,396.56/154,946.36 = 69,347.30/x
  3. Step 3: Cross multiply
    112,396.56x = 154,946.36 × 69,347.30
  4. Step 4: Simplify right side
    112,396.56x = 10,745,110,589.36
  5. Step 5: Solve for x
    x = 10,745,110,589.36/112,396.56
  6. Step 6: Final answer
    x = 95,600.00

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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.