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Finding the Fourth Proportional to 141,832.40, 212,748.60 and 130,022.60

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Solution

The fourth proportional to 141,832.40, 212,748.60 and 130,022.60 is: 195,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,832.40 : 212,748.60 = 130,022.60 : x
  2. Step 2: Convert to fraction form
    141,832.40/212,748.60 = 130,022.60/x
  3. Step 3: Cross multiply
    141,832.40x = 212,748.60 × 130,022.60
  4. Step 4: Simplify right side
    141,832.40x = 27,662,126,118.36
  5. Step 5: Solve for x
    x = 27,662,126,118.36/141,832.40
  6. Step 6: Final answer
    x = 195,033.90

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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.