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Finding the Fourth Proportional to 325,981.68, 488,877.66 and 126,257.52

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Solution

The fourth proportional to 325,981.68, 488,877.66 and 126,257.52 is: 189,349.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,981.68 : 488,877.66 = 126,257.52 : x
  2. Step 2: Convert to fraction form
    325,981.68/488,877.66 = 126,257.52/x
  3. Step 3: Cross multiply
    325,981.68x = 488,877.66 × 126,257.52
  4. Step 4: Simplify right side
    325,981.68x = 61,724,480,935.00
  5. Step 5: Solve for x
    x = 61,724,480,935.00/325,981.68
  6. Step 6: Final answer
    x = 189,349.54

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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.