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Finding the Fourth Proportional to 165,970.56, 248,873.92 and 72,435.84

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Solution

The fourth proportional to 165,970.56, 248,873.92 and 72,435.84 is: 108,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,970.56 : 248,873.92 = 72,435.84 : x
  2. Step 2: Convert to fraction form
    165,970.56/248,873.92 = 72,435.84/x
  3. Step 3: Cross multiply
    165,970.56x = 248,873.92 × 72,435.84
  4. Step 4: Simplify right side
    165,970.56x = 18,027,391,449.29
  5. Step 5: Solve for x
    x = 18,027,391,449.29/165,970.56
  6. Step 6: Final answer
    x = 108,618.01

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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.