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Finding the Fourth Proportional to 201,874,572.80, 302,811,859.20 and 65,573,734.40

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Solution

The fourth proportional to 201,874,572.80, 302,811,859.20 and 65,573,734.40 is: 98,360,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,874,572.80 : 302,811,859.20 = 65,573,734.40 : x
  2. Step 2: Convert to fraction form
    201,874,572.80/302,811,859.20 = 65,573,734.40/x
  3. Step 3: Cross multiply
    201,874,572.80x = 302,811,859.20 × 65,573,734.40
  4. Step 4: Simplify right side
    201,874,572.80x = 19,856,504,428,350,996
  5. Step 5: Solve for x
    x = 19,856,504,428,350,996/201,874,572.80
  6. Step 6: Final answer
    x = 98,360,601.60

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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.