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Finding the Fourth Proportional to 252,364,648.80, 378,546,973.20 and 108,757,480.80

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Solution

The fourth proportional to 252,364,648.80, 378,546,973.20 and 108,757,480.80 is: 163,136,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,364,648.80 : 378,546,973.20 = 108,757,480.80 : x
  2. Step 2: Convert to fraction form
    252,364,648.80/378,546,973.20 = 108,757,480.80/x
  3. Step 3: Cross multiply
    252,364,648.80x = 378,546,973.20 × 108,757,480.80
  4. Step 4: Simplify right side
    252,364,648.80x = 41,169,815,169,697,112
  5. Step 5: Solve for x
    x = 41,169,815,169,697,112/252,364,648.80
  6. Step 6: Final answer
    x = 163,136,221.20

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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.