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Finding the Fourth Proportional to 199,590,700.80, 299,429,596.80 and 113,370,412.80

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Solution

The fourth proportional to 199,590,700.80, 299,429,596.80 and 113,370,412.80 is: 170,080,353.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,590,700.80 : 299,429,596.80 = 113,370,412.80 : x
  2. Step 2: Convert to fraction form
    199,590,700.80/299,429,596.80 = 113,370,412.80/x
  3. Step 3: Cross multiply
    199,590,700.80x = 299,429,596.80 × 113,370,412.80
  4. Step 4: Simplify right side
    199,590,700.80x = 33,946,456,993,753,560
  5. Step 5: Solve for x
    x = 33,946,456,993,753,560/199,590,700.80
  6. Step 6: Final answer
    x = 170,080,353.73

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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.