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Finding the Fourth Proportional to 169,651,974.80, 254,477,962.20 and 83,403,693.20

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Solution

The fourth proportional to 169,651,974.80, 254,477,962.20 and 83,403,693.20 is: 125,105,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,651,974.80 : 254,477,962.20 = 83,403,693.20 : x
  2. Step 2: Convert to fraction form
    169,651,974.80/254,477,962.20 = 83,403,693.20/x
  3. Step 3: Cross multiply
    169,651,974.80x = 254,477,962.20 × 83,403,693.20
  4. Step 4: Simplify right side
    169,651,974.80x = 21,224,401,885,489,996
  5. Step 5: Solve for x
    x = 21,224,401,885,489,996/169,651,974.80
  6. Step 6: Final answer
    x = 125,105,539.80

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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.