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Finding the Fourth Proportional to 170,748.80, 256,161.60 and 52,425.60

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Solution

The fourth proportional to 170,748.80, 256,161.60 and 52,425.60 is: 78,650.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,748.80 : 256,161.60 = 52,425.60 : x
  2. Step 2: Convert to fraction form
    170,748.80/256,161.60 = 52,425.60/x
  3. Step 3: Cross multiply
    170,748.80x = 256,161.60 × 52,425.60
  4. Step 4: Simplify right side
    170,748.80x = 13,429,425,576.96
  5. Step 5: Solve for x
    x = 13,429,425,576.96/170,748.80
  6. Step 6: Final answer
    x = 78,650.19

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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.