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Finding the Fourth Proportional to 96,618.40, 144,927.60 and 68,624.80

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Solution

The fourth proportional to 96,618.40, 144,927.60 and 68,624.80 is: 102,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,618.40 : 144,927.60 = 68,624.80 : x
  2. Step 2: Convert to fraction form
    96,618.40/144,927.60 = 68,624.80/x
  3. Step 3: Cross multiply
    96,618.40x = 144,927.60 × 68,624.80
  4. Step 4: Simplify right side
    96,618.40x = 9,945,627,564.48
  5. Step 5: Solve for x
    x = 9,945,627,564.48/96,618.40
  6. Step 6: Final answer
    x = 102,937.20

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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.