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Finding the Fourth Proportional to 93,309.37, 139,983.90 and 30,133.11

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Solution

The fourth proportional to 93,309.37, 139,983.90 and 30,133.11 is: 45,206.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,309.37 : 139,983.90 = 30,133.11 : x
  2. Step 2: Convert to fraction form
    93,309.37/139,983.90 = 30,133.11/x
  3. Step 3: Cross multiply
    93,309.37x = 139,983.90 × 30,133.11
  4. Step 4: Simplify right side
    93,309.37x = 4,218,150,668.87
  5. Step 5: Solve for x
    x = 4,218,150,668.87/93,309.37
  6. Step 6: Final answer
    x = 45,206.08

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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.