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Finding the Fourth Proportional to 165,847.60, 248,867.78 and 69,777.76

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Solution

The fourth proportional to 165,847.60, 248,867.78 and 69,777.76 is: 104,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,847.60 : 248,867.78 = 69,777.76 : x
  2. Step 2: Convert to fraction form
    165,847.60/248,867.78 = 69,777.76/x
  3. Step 3: Cross multiply
    165,847.60x = 248,867.78 × 69,777.76
  4. Step 4: Simplify right side
    165,847.60x = 17,365,436,224.57
  5. Step 5: Solve for x
    x = 17,365,436,224.57/165,847.60
  6. Step 6: Final answer
    x = 104,707.19

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1.5x scale

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.