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Finding the Fourth Proportional to 178,908.19, 246,620.40 and 151,583.42

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Solution

The fourth proportional to 178,908.19, 246,620.40 and 151,583.42 is: 208,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,908.19 : 246,620.40 = 151,583.42 : x
  2. Step 2: Convert to fraction form
    178,908.19/246,620.40 = 151,583.42/x
  3. Step 3: Cross multiply
    178,908.19x = 246,620.40 × 151,583.42
  4. Step 4: Simplify right side
    178,908.19x = 37,383,563,673.77
  5. Step 5: Solve for x
    x = 37,383,563,673.77/178,908.19
  6. Step 6: Final answer
    x = 208,953.90

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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.