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Finding the Fourth Proportional to 201,662,974.40, 302,494,461.60 and 161,352,190.40

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Solution

The fourth proportional to 201,662,974.40, 302,494,461.60 and 161,352,190.40 is: 242,028,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,662,974.40 : 302,494,461.60 = 161,352,190.40 : x
  2. Step 2: Convert to fraction form
    201,662,974.40/302,494,461.60 = 161,352,190.40/x
  3. Step 3: Cross multiply
    201,662,974.40x = 302,494,461.60 × 161,352,190.40
  4. Step 4: Simplify right side
    201,662,974.40x = 48,808,143,963,028,696
  5. Step 5: Solve for x
    x = 48,808,143,963,028,696/201,662,974.40
  6. Step 6: Final answer
    x = 242,028,285.60

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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.