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Finding the Fourth Proportional to 325,397, 488,040.42 and 88,684.22

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Solution

The fourth proportional to 325,397, 488,040.42 and 88,684.22 is: 133,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,397 : 488,040.42 = 88,684.22 : x
  2. Step 2: Convert to fraction form
    325,397/488,040.42 = 88,684.22/x
  3. Step 3: Cross multiply
    325,397x = 488,040.42 × 88,684.22
  4. Step 4: Simplify right side
    325,397x = 43,281,483,976.17
  5. Step 5: Solve for x
    x = 43,281,483,976.17/325,397
  6. Step 6: Final answer
    x = 133,011.32

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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.