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Finding the Fourth Proportional to 93,081.17, 139,524.53 and 45,630.56

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Solution

The fourth proportional to 93,081.17, 139,524.53 and 45,630.56 is: 68,398.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,081.17 : 139,524.53 = 45,630.56 : x
  2. Step 2: Convert to fraction form
    93,081.17/139,524.53 = 45,630.56/x
  3. Step 3: Cross multiply
    93,081.17x = 139,524.53 × 45,630.56
  4. Step 4: Simplify right side
    93,081.17x = 6,366,581,740.01
  5. Step 5: Solve for x
    x = 6,366,581,740.01/93,081.17
  6. Step 6: Final answer
    x = 68,398.17

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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.