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Finding the Fourth Proportional to 178,392.78, 246,311.18 and 114,841.28

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Solution

The fourth proportional to 178,392.78, 246,311.18 and 114,841.28 is: 158,564.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,392.78 : 246,311.18 = 114,841.28 : x
  2. Step 2: Convert to fraction form
    178,392.78/246,311.18 = 114,841.28/x
  3. Step 3: Cross multiply
    178,392.78x = 246,311.18 × 114,841.28
  4. Step 4: Simplify right side
    178,392.78x = 28,286,691,189.51
  5. Step 5: Solve for x
    x = 28,286,691,189.51/178,392.78
  6. Step 6: Final answer
    x = 158,564.10

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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.