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Finding the Fourth Proportional to 321,592.67, 482,048.67 and 108,157.40

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Solution

The fourth proportional to 321,592.67, 482,048.67 and 108,157.40 is: 162,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,592.67 : 482,048.67 = 108,157.40 : x
  2. Step 2: Convert to fraction form
    321,592.67/482,048.67 = 108,157.40/x
  3. Step 3: Cross multiply
    321,592.67x = 482,048.67 × 108,157.40
  4. Step 4: Simplify right side
    321,592.67x = 52,137,130,820.66
  5. Step 5: Solve for x
    x = 52,137,130,820.66/321,592.67
  6. Step 6: Final answer
    x = 162,121.64

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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.