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Finding the Fourth Proportional to 185,072.80, 277,738.80 and 118,674.40

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Solution

The fourth proportional to 185,072.80, 277,738.80 and 118,674.40 is: 178,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,072.80 : 277,738.80 = 118,674.40 : x
  2. Step 2: Convert to fraction form
    185,072.80/277,738.80 = 118,674.40/x
  3. Step 3: Cross multiply
    185,072.80x = 277,738.80 × 118,674.40
  4. Step 4: Simplify right side
    185,072.80x = 32,960,485,446.72
  5. Step 5: Solve for x
    x = 32,960,485,446.72/185,072.80
  6. Step 6: Final answer
    x = 178,094.70

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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.