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Finding the Fourth Proportional to 188,211.80, 282,317.70 and 173,631.80

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Solution

The fourth proportional to 188,211.80, 282,317.70 and 173,631.80 is: 260,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,211.80 : 282,317.70 = 173,631.80 : x
  2. Step 2: Convert to fraction form
    188,211.80/282,317.70 = 173,631.80/x
  3. Step 3: Cross multiply
    188,211.80x = 282,317.70 × 173,631.80
  4. Step 4: Simplify right side
    188,211.80x = 49,019,330,422.86
  5. Step 5: Solve for x
    x = 49,019,330,422.86/188,211.80
  6. Step 6: Final answer
    x = 260,447.70

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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.