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Finding the Fourth Proportional to 68,756.91, 94,756.12 and 53,625.70

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Solution

The fourth proportional to 68,756.91, 94,756.12 and 53,625.70 is: 73,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,756.91 : 94,756.12 = 53,625.70 : x
  2. Step 2: Convert to fraction form
    68,756.91/94,756.12 = 53,625.70/x
  3. Step 3: Cross multiply
    68,756.91x = 94,756.12 × 53,625.70
  4. Step 4: Simplify right side
    68,756.91x = 5,081,363,264.28
  5. Step 5: Solve for x
    x = 5,081,363,264.28/68,756.91
  6. Step 6: Final answer
    x = 73,903.31

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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.