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Finding the Fourth Proportional to 185,220.48, 277,842.72 and 74,412.48

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Solution

The fourth proportional to 185,220.48, 277,842.72 and 74,412.48 is: 111,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,220.48 : 277,842.72 = 74,412.48 : x
  2. Step 2: Convert to fraction form
    185,220.48/277,842.72 = 74,412.48/x
  3. Step 3: Cross multiply
    185,220.48x = 277,842.72 × 74,412.48
  4. Step 4: Simplify right side
    185,220.48x = 20,674,965,845.15
  5. Step 5: Solve for x
    x = 20,674,965,845.15/185,220.48
  6. Step 6: Final answer
    x = 111,623.54

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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.