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Finding the Fourth Proportional to 68,685.93, 94,797.99 and 47,158.05

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Solution

The fourth proportional to 68,685.93, 94,797.99 and 47,158.05 is: 65,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,685.93 : 94,797.99 = 47,158.05 : x
  2. Step 2: Convert to fraction form
    68,685.93/94,797.99 = 47,158.05/x
  3. Step 3: Cross multiply
    68,685.93x = 94,797.99 × 47,158.05
  4. Step 4: Simplify right side
    68,685.93x = 4,470,488,352.32
  5. Step 5: Solve for x
    x = 4,470,488,352.32/68,685.93
  6. Step 6: Final answer
    x = 65,085.94

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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.