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Finding the Fourth Proportional to 188,343.90, 282,515.85 and 63,684.90

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Solution

The fourth proportional to 188,343.90, 282,515.85 and 63,684.90 is: 95,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,343.90 : 282,515.85 = 63,684.90 : x
  2. Step 2: Convert to fraction form
    188,343.90/282,515.85 = 63,684.90/x
  3. Step 3: Cross multiply
    188,343.90x = 282,515.85 × 63,684.90
  4. Step 4: Simplify right side
    188,343.90x = 17,991,993,655.67
  5. Step 5: Solve for x
    x = 17,991,993,655.67/188,343.90
  6. Step 6: Final answer
    x = 95,527.35

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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.