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Finding the Fourth Proportional to 68,570.57, 94,685.79 and 43,119.53

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Solution

The fourth proportional to 68,570.57, 94,685.79 and 43,119.53 is: 59,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,570.57 : 94,685.79 = 43,119.53 : x
  2. Step 2: Convert to fraction form
    68,570.57/94,685.79 = 43,119.53/x
  3. Step 3: Cross multiply
    68,570.57x = 94,685.79 × 43,119.53
  4. Step 4: Simplify right side
    68,570.57x = 4,082,806,805.82
  5. Step 5: Solve for x
    x = 4,082,806,805.82/68,570.57
  6. Step 6: Final answer
    x = 59,541.68

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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.