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Finding the Fourth Proportional to 97,951.20, 146,926.80 and 93,112.80

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Solution

The fourth proportional to 97,951.20, 146,926.80 and 93,112.80 is: 139,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,951.20 : 146,926.80 = 93,112.80 : x
  2. Step 2: Convert to fraction form
    97,951.20/146,926.80 = 93,112.80/x
  3. Step 3: Cross multiply
    97,951.20x = 146,926.80 × 93,112.80
  4. Step 4: Simplify right side
    97,951.20x = 13,680,765,743.04
  5. Step 5: Solve for x
    x = 13,680,765,743.04/97,951.20
  6. Step 6: Final answer
    x = 139,669.20

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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.