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Finding the Fourth Proportional to 185,059.49, 277,691.87 and 90,290.45

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Solution

The fourth proportional to 185,059.49, 277,691.87 and 90,290.45 is: 135,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,059.49 : 277,691.87 = 90,290.45 : x
  2. Step 2: Convert to fraction form
    185,059.49/277,691.87 = 90,290.45/x
  3. Step 3: Cross multiply
    185,059.49x = 277,691.87 × 90,290.45
  4. Step 4: Simplify right side
    185,059.49x = 25,072,923,322.27
  5. Step 5: Solve for x
    x = 25,072,923,322.27/185,059.49
  6. Step 6: Final answer
    x = 135,485.75

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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.