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Finding the Fourth Proportional to 93,054.56, 139,640.18 and 48,716.80

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Solution

The fourth proportional to 93,054.56, 139,640.18 and 48,716.80 is: 73,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,054.56 : 139,640.18 = 48,716.80 : x
  2. Step 2: Convert to fraction form
    93,054.56/139,640.18 = 48,716.80/x
  3. Step 3: Cross multiply
    93,054.56x = 139,640.18 × 48,716.80
  4. Step 4: Simplify right side
    93,054.56x = 6,802,822,721.02
  5. Step 5: Solve for x
    x = 6,802,822,721.02/93,054.56
  6. Step 6: Final answer
    x = 73,105.74

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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.