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Finding the Fourth Proportional to 325,364.90, 488,032.98 and 88,707.60

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Solution

The fourth proportional to 325,364.90, 488,032.98 and 88,707.60 is: 133,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,364.90 : 488,032.98 = 88,707.60 : x
  2. Step 2: Convert to fraction form
    325,364.90/488,032.98 = 88,707.60/x
  3. Step 3: Cross multiply
    325,364.90x = 488,032.98 × 88,707.60
  4. Step 4: Simplify right side
    325,364.90x = 43,292,234,376.65
  5. Step 5: Solve for x
    x = 43,292,234,376.65/325,364.90
  6. Step 6: Final answer
    x = 133,057.48

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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.