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Finding the Fourth Proportional to 201,540.60, 302,543.70 and 108,228.60

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Solution

The fourth proportional to 201,540.60, 302,543.70 and 108,228.60 is: 162,467.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,540.60 : 302,543.70 = 108,228.60 : x
  2. Step 2: Convert to fraction form
    201,540.60/302,543.70 = 108,228.60/x
  3. Step 3: Cross multiply
    201,540.60x = 302,543.70 × 108,228.60
  4. Step 4: Simplify right side
    201,540.60x = 32,743,881,089.82
  5. Step 5: Solve for x
    x = 32,743,881,089.82/201,540.60
  6. Step 6: Final answer
    x = 162,467.92

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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.