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Finding the Fourth Proportional to 144,567.96, 199,504.80 and 80,911.68

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Solution

The fourth proportional to 144,567.96, 199,504.80 and 80,911.68 is: 111,658.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,567.96 : 199,504.80 = 80,911.68 : x
  2. Step 2: Convert to fraction form
    144,567.96/199,504.80 = 80,911.68/x
  3. Step 3: Cross multiply
    144,567.96x = 199,504.80 × 80,911.68
  4. Step 4: Simplify right side
    144,567.96x = 16,142,268,536.06
  5. Step 5: Solve for x
    x = 16,142,268,536.06/144,567.96
  6. Step 6: Final answer
    x = 111,658.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.