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Finding the Fourth Proportional to 68,100.40, 93,876.13 and 53,735.46

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Solution

The fourth proportional to 68,100.40, 93,876.13 and 53,735.46 is: 74,074.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,100.40 : 93,876.13 = 53,735.46 : x
  2. Step 2: Convert to fraction form
    68,100.40/93,876.13 = 53,735.46/x
  3. Step 3: Cross multiply
    68,100.40x = 93,876.13 × 53,735.46
  4. Step 4: Simplify right side
    68,100.40x = 5,044,477,028.57
  5. Step 5: Solve for x
    x = 5,044,477,028.57/68,100.40
  6. Step 6: Final answer
    x = 74,074.12

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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.