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Finding the Fourth Proportional to 93,345, 139,975.20 and 26,769.84

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Solution

The fourth proportional to 93,345, 139,975.20 and 26,769.84 is: 40,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,345 : 139,975.20 = 26,769.84 : x
  2. Step 2: Convert to fraction form
    93,345/139,975.20 = 26,769.84/x
  3. Step 3: Cross multiply
    93,345x = 139,975.20 × 26,769.84
  4. Step 4: Simplify right side
    93,345x = 3,747,113,707.97
  5. Step 5: Solve for x
    x = 3,747,113,707.97/93,345
  6. Step 6: Final answer
    x = 40,142.63

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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.