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Finding the Fourth Proportional to 169,991,663.16, 254,958,968.94 and 47,182,456.92

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Solution

The fourth proportional to 169,991,663.16, 254,958,968.94 and 47,182,456.92 is: 70,765,767.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,991,663.16 : 254,958,968.94 = 47,182,456.92 : x
  2. Step 2: Convert to fraction form
    169,991,663.16/254,958,968.94 = 47,182,456.92/x
  3. Step 3: Cross multiply
    169,991,663.16x = 254,958,968.94 × 47,182,456.92
  4. Step 4: Simplify right side
    169,991,663.16x = 12,029,590,568,379,168
  5. Step 5: Solve for x
    x = 12,029,590,568,379,168/169,991,663.16
  6. Step 6: Final answer
    x = 70,765,767.83

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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.