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Finding the Fourth Proportional to 141,843.60, 213,082.20 and 118,515.60

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Solution

The fourth proportional to 141,843.60, 213,082.20 and 118,515.60 is: 178,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,843.60 : 213,082.20 = 118,515.60 : x
  2. Step 2: Convert to fraction form
    141,843.60/213,082.20 = 118,515.60/x
  3. Step 3: Cross multiply
    141,843.60x = 213,082.20 × 118,515.60
  4. Step 4: Simplify right side
    141,843.60x = 25,253,564,782.32
  5. Step 5: Solve for x
    x = 25,253,564,782.32/141,843.60
  6. Step 6: Final answer
    x = 178,038.10

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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.