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Finding the Fourth Proportional to 70,722.63, 97,546.32 and 48,022.20

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Solution

The fourth proportional to 70,722.63, 97,546.32 and 48,022.20 is: 66,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,722.63 : 97,546.32 = 48,022.20 : x
  2. Step 2: Convert to fraction form
    70,722.63/97,546.32 = 48,022.20/x
  3. Step 3: Cross multiply
    70,722.63x = 97,546.32 × 48,022.20
  4. Step 4: Simplify right side
    70,722.63x = 4,684,388,888.30
  5. Step 5: Solve for x
    x = 4,684,388,888.30/70,722.63
  6. Step 6: Final answer
    x = 66,236.07

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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.