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Finding the Fourth Proportional to 236,606.90, 355,169.55 and 131,630.90

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Solution

The fourth proportional to 236,606.90, 355,169.55 and 131,630.90 is: 197,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,606.90 : 355,169.55 = 131,630.90 : x
  2. Step 2: Convert to fraction form
    236,606.90/355,169.55 = 131,630.90/x
  3. Step 3: Cross multiply
    236,606.90x = 355,169.55 × 131,630.90
  4. Step 4: Simplify right side
    236,606.90x = 46,751,287,519.10
  5. Step 5: Solve for x
    x = 46,751,287,519.10/236,606.90
  6. Step 6: Final answer
    x = 197,590.55

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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.