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Finding the Fourth Proportional to 178,964.32, 268,498.32 and 73,729.12

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Solution

The fourth proportional to 178,964.32, 268,498.32 and 73,729.12 is: 110,615.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,964.32 : 268,498.32 = 73,729.12 : x
  2. Step 2: Convert to fraction form
    178,964.32/268,498.32 = 73,729.12/x
  3. Step 3: Cross multiply
    178,964.32x = 268,498.32 × 73,729.12
  4. Step 4: Simplify right side
    178,964.32x = 19,796,144,855.08
  5. Step 5: Solve for x
    x = 19,796,144,855.08/178,964.32
  6. Step 6: Final answer
    x = 110,615.04

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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.