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Finding the Fourth Proportional to 248,338.55, 372,511.40 and 70,845.58

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Solution

The fourth proportional to 248,338.55, 372,511.40 and 70,845.58 is: 106,269.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,338.55 : 372,511.40 = 70,845.58 : x
  2. Step 2: Convert to fraction form
    248,338.55/372,511.40 = 70,845.58/x
  3. Step 3: Cross multiply
    248,338.55x = 372,511.40 × 70,845.58
  4. Step 4: Simplify right side
    248,338.55x = 26,390,786,301.02
  5. Step 5: Solve for x
    x = 26,390,786,301.02/248,338.55
  6. Step 6: Final answer
    x = 106,269.39

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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.