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Finding the Fourth Proportional to 188,212.80, 282,319.20 and 173,632.80

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Solution

The fourth proportional to 188,212.80, 282,319.20 and 173,632.80 is: 260,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,212.80 : 282,319.20 = 173,632.80 : x
  2. Step 2: Convert to fraction form
    188,212.80/282,319.20 = 173,632.80/x
  3. Step 3: Cross multiply
    188,212.80x = 282,319.20 × 173,632.80
  4. Step 4: Simplify right side
    188,212.80x = 49,019,873,189.76
  5. Step 5: Solve for x
    x = 49,019,873,189.76/188,212.80
  6. Step 6: Final answer
    x = 260,449.20

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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.