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Finding the Fourth Proportional to 308,343.83, 462,452.18 and 118,739.12

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Solution

The fourth proportional to 308,343.83, 462,452.18 and 118,739.12 is: 178,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,343.83 : 462,452.18 = 118,739.12 : x
  2. Step 2: Convert to fraction form
    308,343.83/462,452.18 = 118,739.12/x
  3. Step 3: Cross multiply
    308,343.83x = 462,452.18 × 118,739.12
  4. Step 4: Simplify right side
    308,343.83x = 54,911,161,989.33
  5. Step 5: Solve for x
    x = 54,911,161,989.33/308,343.83
  6. Step 6: Final answer
    x = 178,084.20

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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.