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Finding the Fourth Proportional to 325,362.90, 488,029.98 and 88,705.61

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Solution

The fourth proportional to 325,362.90, 488,029.98 and 88,705.61 is: 133,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,362.90 : 488,029.98 = 88,705.61 : x
  2. Step 2: Convert to fraction form
    325,362.90/488,029.98 = 88,705.61/x
  3. Step 3: Cross multiply
    325,362.90x = 488,029.98 × 88,705.61
  4. Step 4: Simplify right side
    325,362.90x = 43,290,996,297.83
  5. Step 5: Solve for x
    x = 43,290,996,297.83/325,362.90
  6. Step 6: Final answer
    x = 133,054.49

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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.