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Finding the Fourth Proportional to 248,364.36, 372,609.42 and 70,872

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Solution

The fourth proportional to 248,364.36, 372,609.42 and 70,872 is: 106,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,364.36 : 372,609.42 = 70,872 : x
  2. Step 2: Convert to fraction form
    248,364.36/372,609.42 = 70,872/x
  3. Step 3: Cross multiply
    248,364.36x = 372,609.42 × 70,872
  4. Step 4: Simplify right side
    248,364.36x = 26,407,574,814.24
  5. Step 5: Solve for x
    x = 26,407,574,814.24/248,364.36
  6. Step 6: Final answer
    x = 106,325.94

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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.