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Finding the Fourth Proportional to 378,088,577.80, 567,132,866.70 and 90,874,241.80

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Solution

The fourth proportional to 378,088,577.80, 567,132,866.70 and 90,874,241.80 is: 136,311,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,088,577.80 : 567,132,866.70 = 90,874,241.80 : x
  2. Step 2: Convert to fraction form
    378,088,577.80/567,132,866.70 = 90,874,241.80/x
  3. Step 3: Cross multiply
    378,088,577.80x = 567,132,866.70 × 90,874,241.80
  4. Step 4: Simplify right side
    378,088,577.80x = 51,537,769,261,222,968
  5. Step 5: Solve for x
    x = 51,537,769,261,222,968/378,088,577.80
  6. Step 6: Final answer
    x = 136,311,362.70

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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.