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Finding the Fourth Proportional to 325,978.68, 488,873.16 and 126,254.52

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Solution

The fourth proportional to 325,978.68, 488,873.16 and 126,254.52 is: 189,345.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,978.68 : 488,873.16 = 126,254.52 : x
  2. Step 2: Convert to fraction form
    325,978.68/488,873.16 = 126,254.52/x
  3. Step 3: Cross multiply
    325,978.68x = 488,873.16 × 126,254.52
  4. Step 4: Simplify right side
    325,978.68x = 61,722,446,156.68
  5. Step 5: Solve for x
    x = 61,722,446,156.68/325,978.68
  6. Step 6: Final answer
    x = 189,345.04

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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.