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Finding the Fourth Proportional to 325,432.36, 488,133.96 and 88,774.28

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Solution

The fourth proportional to 325,432.36, 488,133.96 and 88,774.28 is: 133,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,432.36 : 488,133.96 = 88,774.28 : x
  2. Step 2: Convert to fraction form
    325,432.36/488,133.96 = 88,774.28/x
  3. Step 3: Cross multiply
    325,432.36x = 488,133.96 × 88,774.28
  4. Step 4: Simplify right side
    325,432.36x = 43,333,740,842.55
  5. Step 5: Solve for x
    x = 43,333,740,842.55/325,432.36
  6. Step 6: Final answer
    x = 133,157.44

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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.