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Finding the Fourth Proportional to 95,698,755.80, 143,548,133.70 and 90,659,907.80

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Solution

The fourth proportional to 95,698,755.80, 143,548,133.70 and 90,659,907.80 is: 135,989,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,698,755.80 : 143,548,133.70 = 90,659,907.80 : x
  2. Step 2: Convert to fraction form
    95,698,755.80/143,548,133.70 = 90,659,907.80/x
  3. Step 3: Cross multiply
    95,698,755.80x = 143,548,133.70 × 90,659,907.80
  4. Step 4: Simplify right side
    95,698,755.80x = 13,014,060,566,104,072
  5. Step 5: Solve for x
    x = 13,014,060,566,104,072/95,698,755.80
  6. Step 6: Final answer
    x = 135,989,861.70

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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.