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Finding the Fourth Proportional to 93,880.56, 140,806.26 and 30,700.20

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Solution

The fourth proportional to 93,880.56, 140,806.26 and 30,700.20 is: 46,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,880.56 : 140,806.26 = 30,700.20 : x
  2. Step 2: Convert to fraction form
    93,880.56/140,806.26 = 30,700.20/x
  3. Step 3: Cross multiply
    93,880.56x = 140,806.26 × 30,700.20
  4. Step 4: Simplify right side
    93,880.56x = 4,322,780,343.25
  5. Step 5: Solve for x
    x = 4,322,780,343.25/93,880.56
  6. Step 6: Final answer
    x = 46,045.53

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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.