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Finding the Fourth Proportional to 169,782.40, 254,673.60 and 163,221.40

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Solution

The fourth proportional to 169,782.40, 254,673.60 and 163,221.40 is: 244,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,782.40 : 254,673.60 = 163,221.40 : x
  2. Step 2: Convert to fraction form
    169,782.40/254,673.60 = 163,221.40/x
  3. Step 3: Cross multiply
    169,782.40x = 254,673.60 × 163,221.40
  4. Step 4: Simplify right side
    169,782.40x = 41,568,181,535.04
  5. Step 5: Solve for x
    x = 41,568,181,535.04/169,782.40
  6. Step 6: Final answer
    x = 244,832.10

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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.