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Finding the Fourth Proportional to 93,657.20, 140,477.90 and 40,347.05

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Solution

The fourth proportional to 93,657.20, 140,477.90 and 40,347.05 is: 60,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,657.20 : 140,477.90 = 40,347.05 : x
  2. Step 2: Convert to fraction form
    93,657.20/140,477.90 = 40,347.05/x
  3. Step 3: Cross multiply
    93,657.20x = 140,477.90 × 40,347.05
  4. Step 4: Simplify right side
    93,657.20x = 5,667,867,951.07
  5. Step 5: Solve for x
    x = 5,667,867,951.07/93,657.20
  6. Step 6: Final answer
    x = 60,517.17

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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.