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Finding the Fourth Proportional to 178,694.59, 268,041.98 and 112,181.43

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Solution

The fourth proportional to 178,694.59, 268,041.98 and 112,181.43 is: 168,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,694.59 : 268,041.98 = 112,181.43 : x
  2. Step 2: Convert to fraction form
    178,694.59/268,041.98 = 112,181.43/x
  3. Step 3: Cross multiply
    178,694.59x = 268,041.98 × 112,181.43
  4. Step 4: Simplify right side
    178,694.59x = 30,069,331,009.42
  5. Step 5: Solve for x
    x = 30,069,331,009.42/178,694.59
  6. Step 6: Final answer
    x = 168,272.20

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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.