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Finding the Fourth Proportional to 134,813.72, 201,794.06 and 84,720.48

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Solution

The fourth proportional to 134,813.72, 201,794.06 and 84,720.48 is: 126,812.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,813.72 : 201,794.06 = 84,720.48 : x
  2. Step 2: Convert to fraction form
    134,813.72/201,794.06 = 84,720.48/x
  3. Step 3: Cross multiply
    134,813.72x = 201,794.06 × 84,720.48
  4. Step 4: Simplify right side
    134,813.72x = 17,096,089,624.35
  5. Step 5: Solve for x
    x = 17,096,089,624.35/134,813.72
  6. Step 6: Final answer
    x = 126,812.68

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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.