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Finding the Fourth Proportional to 248,267.80, 372,403.88 and 70,774.60

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Solution

The fourth proportional to 248,267.80, 372,403.88 and 70,774.60 is: 106,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,267.80 : 372,403.88 = 70,774.60 : x
  2. Step 2: Convert to fraction form
    248,267.80/372,403.88 = 70,774.60/x
  3. Step 3: Cross multiply
    248,267.80x = 372,403.88 × 70,774.60
  4. Step 4: Simplify right side
    248,267.80x = 26,356,735,645.45
  5. Step 5: Solve for x
    x = 26,356,735,645.45/248,267.80
  6. Step 6: Final answer
    x = 106,162.52

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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.