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Finding the Fourth Proportional to 93,314.80, 139,920.80 and 63,766

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Solution

The fourth proportional to 93,314.80, 139,920.80 and 63,766 is: 95,613.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,314.80 : 139,920.80 = 63,766 : x
  2. Step 2: Convert to fraction form
    93,314.80/139,920.80 = 63,766/x
  3. Step 3: Cross multiply
    93,314.80x = 139,920.80 × 63,766
  4. Step 4: Simplify right side
    93,314.80x = 8,922,189,732.80
  5. Step 5: Solve for x
    x = 8,922,189,732.80/93,314.80
  6. Step 6: Final answer
    x = 95,613.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.