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Finding the Fourth Proportional to 248,348.70, 372,537.45 and 70,868.70

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Solution

The fourth proportional to 248,348.70, 372,537.45 and 70,868.70 is: 106,307.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,348.70 : 372,537.45 = 70,868.70 : x
  2. Step 2: Convert to fraction form
    248,348.70/372,537.45 = 70,868.70/x
  3. Step 3: Cross multiply
    248,348.70x = 372,537.45 × 70,868.70
  4. Step 4: Simplify right side
    248,348.70x = 26,401,244,782.82
  5. Step 5: Solve for x
    x = 26,401,244,782.82/248,348.70
  6. Step 6: Final answer
    x = 106,307.16

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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.