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Finding the Fourth Proportional to 248,346.28, 372,488.64 and 70,868.80

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Solution

The fourth proportional to 248,346.28, 372,488.64 and 70,868.80 is: 106,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,346.28 : 372,488.64 = 70,868.80 : x
  2. Step 2: Convert to fraction form
    248,346.28/372,488.64 = 70,868.80/x
  3. Step 3: Cross multiply
    248,346.28x = 372,488.64 × 70,868.80
  4. Step 4: Simplify right side
    248,346.28x = 26,397,822,930.43
  5. Step 5: Solve for x
    x = 26,397,822,930.43/248,346.28
  6. Step 6: Final answer
    x = 106,294.42

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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.