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Finding the Fourth Proportional to 68,395.93, 94,383.90 and 42,916.03

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Solution

The fourth proportional to 68,395.93, 94,383.90 and 42,916.03 is: 59,222.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,395.93 : 94,383.90 = 42,916.03 : x
  2. Step 2: Convert to fraction form
    68,395.93/94,383.90 = 42,916.03/x
  3. Step 3: Cross multiply
    68,395.93x = 94,383.90 × 42,916.03
  4. Step 4: Simplify right side
    68,395.93x = 4,050,582,283.92
  5. Step 5: Solve for x
    x = 4,050,582,283.92/68,395.93
  6. Step 6: Final answer
    x = 59,222.56

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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.