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Finding the Fourth Proportional to 367,954.72, 551,989.36 and 118,661.92

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Solution

The fourth proportional to 367,954.72, 551,989.36 and 118,661.92 is: 178,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,954.72 : 551,989.36 = 118,661.92 : x
  2. Step 2: Convert to fraction form
    367,954.72/551,989.36 = 118,661.92/x
  3. Step 3: Cross multiply
    367,954.72x = 551,989.36 × 118,661.92
  4. Step 4: Simplify right side
    367,954.72x = 65,500,117,277.17
  5. Step 5: Solve for x
    x = 65,500,117,277.17/367,954.72
  6. Step 6: Final answer
    x = 178,011.35

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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.