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Finding the Fourth Proportional to 63,789,994.80, 95,619,673.80 and 31,392,068.40

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Solution

The fourth proportional to 63,789,994.80, 95,619,673.80 and 31,392,068.40 is: 47,055,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,789,994.80 : 95,619,673.80 = 31,392,068.40 : x
  2. Step 2: Convert to fraction form
    63,789,994.80/95,619,673.80 = 31,392,068.40/x
  3. Step 3: Cross multiply
    63,789,994.80x = 95,619,673.80 × 31,392,068.40
  4. Step 4: Simplify right side
    63,789,994.80x = 3,001,699,340,315,287.50
  5. Step 5: Solve for x
    x = 3,001,699,340,315,287.50/63,789,994.80
  6. Step 6: Final answer
    x = 47,055,958.38

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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.