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Finding the Fourth Proportional to 201,880,361.80, 302,820,542.70 and 65,579,523.40

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Solution

The fourth proportional to 201,880,361.80, 302,820,542.70 and 65,579,523.40 is: 98,369,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,880,361.80 : 302,820,542.70 = 65,579,523.40 : x
  2. Step 2: Convert to fraction form
    201,880,361.80/302,820,542.70 = 65,579,523.40/x
  3. Step 3: Cross multiply
    201,880,361.80x = 302,820,542.70 × 65,579,523.40
  4. Step 4: Simplify right side
    201,880,361.80x = 19,858,826,865,995,348
  5. Step 5: Solve for x
    x = 19,858,826,865,995,348/201,880,361.80
  6. Step 6: Final answer
    x = 98,369,285.10

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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.