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Finding the Fourth Proportional to 165,903.60, 248,794.65 and 53,613.30

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Solution

The fourth proportional to 165,903.60, 248,794.65 and 53,613.30 is: 80,400.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,903.60 : 248,794.65 = 53,613.30 : x
  2. Step 2: Convert to fraction form
    165,903.60/248,794.65 = 53,613.30/x
  3. Step 3: Cross multiply
    165,903.60x = 248,794.65 × 53,613.30
  4. Step 4: Simplify right side
    165,903.60x = 13,338,702,208.85
  5. Step 5: Solve for x
    x = 13,338,702,208.85/165,903.60
  6. Step 6: Final answer
    x = 80,400.32

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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.