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Finding the Fourth Proportional to 327,808,785.60, 491,738,061.60 and 97,759,915.20

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Solution

The fourth proportional to 327,808,785.60, 491,738,061.60 and 97,759,915.20 is: 146,647,293.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,808,785.60 : 491,738,061.60 = 97,759,915.20 : x
  2. Step 2: Convert to fraction form
    327,808,785.60/491,738,061.60 = 97,759,915.20/x
  3. Step 3: Cross multiply
    327,808,785.60x = 491,738,061.60 × 97,759,915.20
  4. Step 4: Simplify right side
    327,808,785.60x = 48,072,271,202,628,384
  5. Step 5: Solve for x
    x = 48,072,271,202,628,384/327,808,785.60
  6. Step 6: Final answer
    x = 146,647,293.53

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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.