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Finding the Fourth Proportional to 68,433.82, 93,752.76 and 65,875.29

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Solution

The fourth proportional to 68,433.82, 93,752.76 and 65,875.29 is: 90,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,433.82 : 93,752.76 = 65,875.29 : x
  2. Step 2: Convert to fraction form
    68,433.82/93,752.76 = 65,875.29/x
  3. Step 3: Cross multiply
    68,433.82x = 93,752.76 × 65,875.29
  4. Step 4: Simplify right side
    68,433.82x = 6,175,990,253.30
  5. Step 5: Solve for x
    x = 6,175,990,253.30/68,433.82
  6. Step 6: Final answer
    x = 90,247.64

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.