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Finding the Fourth Proportional to 68,032.03, 93,930.02 and 60,839.64

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Solution

The fourth proportional to 68,032.03, 93,930.02 and 60,839.64 is: 83,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,032.03 : 93,930.02 = 60,839.64 : x
  2. Step 2: Convert to fraction form
    68,032.03/93,930.02 = 60,839.64/x
  3. Step 3: Cross multiply
    68,032.03x = 93,930.02 × 60,839.64
  4. Step 4: Simplify right side
    68,032.03x = 5,714,668,601.99
  5. Step 5: Solve for x
    x = 5,714,668,601.99/68,032.03
  6. Step 6: Final answer
    x = 83,999.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.