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Finding the Fourth Proportional to 201,676,913.20, 302,515,369.80 and 132,802,159.60

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Solution

The fourth proportional to 201,676,913.20, 302,515,369.80 and 132,802,159.60 is: 199,203,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,676,913.20 : 302,515,369.80 = 132,802,159.60 : x
  2. Step 2: Convert to fraction form
    201,676,913.20/302,515,369.80 = 132,802,159.60/x
  3. Step 3: Cross multiply
    201,676,913.20x = 302,515,369.80 × 132,802,159.60
  4. Step 4: Simplify right side
    201,676,913.20x = 40,174,694,421,632,616
  5. Step 5: Solve for x
    x = 40,174,694,421,632,616/201,676,913.20
  6. Step 6: Final answer
    x = 199,203,239.40

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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.