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Finding the Fourth Proportional to 241,419.20, 362,128.80 and 141,627.20

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Solution

The fourth proportional to 241,419.20, 362,128.80 and 141,627.20 is: 212,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,419.20 : 362,128.80 = 141,627.20 : x
  2. Step 2: Convert to fraction form
    241,419.20/362,128.80 = 141,627.20/x
  3. Step 3: Cross multiply
    241,419.20x = 362,128.80 × 141,627.20
  4. Step 4: Simplify right side
    241,419.20x = 51,287,287,983.36
  5. Step 5: Solve for x
    x = 51,287,287,983.36/241,419.20
  6. Step 6: Final answer
    x = 212,440.80

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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.