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Finding the Fourth Proportional to 95,846,323.80, 143,769,485.70 and 78,840,211.80

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Solution

The fourth proportional to 95,846,323.80, 143,769,485.70 and 78,840,211.80 is: 118,260,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,846,323.80 : 143,769,485.70 = 78,840,211.80 : x
  2. Step 2: Convert to fraction form
    95,846,323.80/143,769,485.70 = 78,840,211.80/x
  3. Step 3: Cross multiply
    95,846,323.80x = 143,769,485.70 × 78,840,211.80
  4. Step 4: Simplify right side
    95,846,323.80x = 11,334,816,702,965,070
  5. Step 5: Solve for x
    x = 11,334,816,702,965,070/95,846,323.80
  6. Step 6: Final answer
    x = 118,260,317.70

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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.