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Finding the Fourth Proportional to 201,470,828.80, 302,131,593.60 and 65,160,659.20

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Solution

The fourth proportional to 201,470,828.80, 302,131,593.60 and 65,160,659.20 is: 97,716,845.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,470,828.80 : 302,131,593.60 = 65,160,659.20 : x
  2. Step 2: Convert to fraction form
    201,470,828.80/302,131,593.60 = 65,160,659.20/x
  3. Step 3: Cross multiply
    201,470,828.80x = 302,131,593.60 × 65,160,659.20
  4. Step 4: Simplify right side
    201,470,828.80x = 19,687,093,804,122,504
  5. Step 5: Solve for x
    x = 19,687,093,804,122,504/201,470,828.80
  6. Step 6: Final answer
    x = 97,716,845.27

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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.