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Finding the Fourth Proportional to 167,859,226.80, 251,788,840.20 and 99,666,817.20

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Solution

The fourth proportional to 167,859,226.80, 251,788,840.20 and 99,666,817.20 is: 149,500,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,859,226.80 : 251,788,840.20 = 99,666,817.20 : x
  2. Step 2: Convert to fraction form
    167,859,226.80/251,788,840.20 = 99,666,817.20/x
  3. Step 3: Cross multiply
    167,859,226.80x = 251,788,840.20 × 99,666,817.20
  4. Step 4: Simplify right side
    167,859,226.80x = 25,094,992,309,213,412
  5. Step 5: Solve for x
    x = 25,094,992,309,213,412/167,859,226.80
  6. Step 6: Final answer
    x = 149,500,225.80

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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.