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Finding the Fourth Proportional to 248,462.40, 372,693.60 and 221,505.60

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Solution

The fourth proportional to 248,462.40, 372,693.60 and 221,505.60 is: 332,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,462.40 : 372,693.60 = 221,505.60 : x
  2. Step 2: Convert to fraction form
    248,462.40/372,693.60 = 221,505.60/x
  3. Step 3: Cross multiply
    248,462.40x = 372,693.60 × 221,505.60
  4. Step 4: Simplify right side
    248,462.40x = 82,553,719,484.16
  5. Step 5: Solve for x
    x = 82,553,719,484.16/248,462.40
  6. Step 6: Final answer
    x = 332,258.40

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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.