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Finding the Fourth Proportional to 93,080.67, 139,523.78 and 45,630.06

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Solution

The fourth proportional to 93,080.67, 139,523.78 and 45,630.06 is: 68,397.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,080.67 : 139,523.78 = 45,630.06 : x
  2. Step 2: Convert to fraction form
    93,080.67/139,523.78 = 45,630.06/x
  3. Step 3: Cross multiply
    93,080.67x = 139,523.78 × 45,630.06
  4. Step 4: Simplify right side
    93,080.67x = 6,366,477,755.21
  5. Step 5: Solve for x
    x = 6,366,477,755.21/93,080.67
  6. Step 6: Final answer
    x = 68,397.42

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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.