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Finding the Fourth Proportional to 248,285.52, 372,431.75 and 70,792.60

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Solution

The fourth proportional to 248,285.52, 372,431.75 and 70,792.60 is: 106,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,285.52 : 372,431.75 = 70,792.60 : x
  2. Step 2: Convert to fraction form
    248,285.52/372,431.75 = 70,792.60/x
  3. Step 3: Cross multiply
    248,285.52x = 372,431.75 × 70,792.60
  4. Step 4: Simplify right side
    248,285.52x = 26,365,411,905.05
  5. Step 5: Solve for x
    x = 26,365,411,905.05/248,285.52
  6. Step 6: Final answer
    x = 106,189.89

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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.