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Finding the Fourth Proportional to 93,378.25, 140,068.60 and 31,048.75

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Solution

The fourth proportional to 93,378.25, 140,068.60 and 31,048.75 is: 46,573.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,378.25 : 140,068.60 = 31,048.75 : x
  2. Step 2: Convert to fraction form
    93,378.25/140,068.60 = 31,048.75/x
  3. Step 3: Cross multiply
    93,378.25x = 140,068.60 × 31,048.75
  4. Step 4: Simplify right side
    93,378.25x = 4,348,954,944.25
  5. Step 5: Solve for x
    x = 4,348,954,944.25/93,378.25
  6. Step 6: Final answer
    x = 46,573.53

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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.