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Finding the Fourth Proportional to 157,672.40, 236,508.60 and 155,080.40

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Solution

The fourth proportional to 157,672.40, 236,508.60 and 155,080.40 is: 232,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,672.40 : 236,508.60 = 155,080.40 : x
  2. Step 2: Convert to fraction form
    157,672.40/236,508.60 = 155,080.40/x
  3. Step 3: Cross multiply
    157,672.40x = 236,508.60 × 155,080.40
  4. Step 4: Simplify right side
    157,672.40x = 36,677,848,291.44
  5. Step 5: Solve for x
    x = 36,677,848,291.44/157,672.40
  6. Step 6: Final answer
    x = 232,620.60

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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.