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Finding the Fourth Proportional to 367,769, 551,653.53 and 118,451

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Solution

The fourth proportional to 367,769, 551,653.53 and 118,451 is: 177,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,769 : 551,653.53 = 118,451 : x
  2. Step 2: Convert to fraction form
    367,769/551,653.53 = 118,451/x
  3. Step 3: Cross multiply
    367,769x = 551,653.53 × 118,451
  4. Step 4: Simplify right side
    367,769x = 65,343,912,282.03
  5. Step 5: Solve for x
    x = 65,343,912,282.03/367,769
  6. Step 6: Final answer
    x = 177,676.51

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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.