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Finding the Fourth Proportional to 201,738,820.40, 302,608,230.60 and 132,864,066.80

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Solution

The fourth proportional to 201,738,820.40, 302,608,230.60 and 132,864,066.80 is: 199,296,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,738,820.40 : 302,608,230.60 = 132,864,066.80 : x
  2. Step 2: Convert to fraction form
    201,738,820.40/302,608,230.60 = 132,864,066.80/x
  3. Step 3: Cross multiply
    201,738,820.40x = 302,608,230.60 × 132,864,066.80
  4. Step 4: Simplify right side
    201,738,820.40x = 40,205,760,164,668,208
  5. Step 5: Solve for x
    x = 40,205,760,164,668,208/201,738,820.40
  6. Step 6: Final answer
    x = 199,296,100.20

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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.