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Finding the Fourth Proportional to 68,040.16, 93,865.08 and 45,357.16

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Solution

The fourth proportional to 68,040.16, 93,865.08 and 45,357.16 is: 62,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,040.16 : 93,865.08 = 45,357.16 : x
  2. Step 2: Convert to fraction form
    68,040.16/93,865.08 = 45,357.16/x
  3. Step 3: Cross multiply
    68,040.16x = 93,865.08 × 45,357.16
  4. Step 4: Simplify right side
    68,040.16x = 4,257,453,451.97
  5. Step 5: Solve for x
    x = 4,257,453,451.97/68,040.16
  6. Step 6: Final answer
    x = 62,572.65

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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.