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Finding the Fourth Proportional to 165,939,262.80, 231,777,490.80 and 165,939,262.80

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Solution

The fourth proportional to 165,939,262.80, 231,777,490.80 and 165,939,262.80 is: 231,777,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,939,262.80 : 231,777,490.80 = 165,939,262.80 : x
  2. Step 2: Convert to fraction form
    165,939,262.80/231,777,490.80 = 165,939,262.80/x
  3. Step 3: Cross multiply
    165,939,262.80x = 231,777,490.80 × 165,939,262.80
  4. Step 4: Simplify right side
    165,939,262.80x = 38,460,985,956,985,784
  5. Step 5: Solve for x
    x = 38,460,985,956,985,784/165,939,262.80
  6. Step 6: Final answer
    x = 231,777,490.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.