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Finding the Fourth Proportional to 248,031.20, 371,269.20 and 178,047.20

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Solution

The fourth proportional to 248,031.20, 371,269.20 and 178,047.20 is: 266,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,031.20 : 371,269.20 = 178,047.20 : x
  2. Step 2: Convert to fraction form
    248,031.20/371,269.20 = 178,047.20/x
  3. Step 3: Cross multiply
    248,031.20x = 371,269.20 × 178,047.20
  4. Step 4: Simplify right side
    248,031.20x = 66,103,441,506.24
  5. Step 5: Solve for x
    x = 66,103,441,506.24/248,031.20
  6. Step 6: Final answer
    x = 266,512.61

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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.