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Finding the Fourth Proportional to 325,848.61, 488,769.88 and 89,190.91

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Solution

The fourth proportional to 325,848.61, 488,769.88 and 89,190.91 is: 133,785.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,848.61 : 488,769.88 = 89,190.91 : x
  2. Step 2: Convert to fraction form
    325,848.61/488,769.88 = 89,190.91/x
  3. Step 3: Cross multiply
    325,848.61x = 488,769.88 × 89,190.91
  4. Step 4: Simplify right side
    325,848.61x = 43,593,830,377.79
  5. Step 5: Solve for x
    x = 43,593,830,377.79/325,848.61
  6. Step 6: Final answer
    x = 133,785.53

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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.