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Finding the Fourth Proportional to 367,780.50, 551,670.75 and 118,462.50

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Solution

The fourth proportional to 367,780.50, 551,670.75 and 118,462.50 is: 177,693.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,780.50 : 551,670.75 = 118,462.50 : x
  2. Step 2: Convert to fraction form
    367,780.50/551,670.75 = 118,462.50/x
  3. Step 3: Cross multiply
    367,780.50x = 551,670.75 × 118,462.50
  4. Step 4: Simplify right side
    367,780.50x = 65,352,296,221.88
  5. Step 5: Solve for x
    x = 65,352,296,221.88/367,780.50
  6. Step 6: Final answer
    x = 177,693.75

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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.