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Finding the Fourth Proportional to 93,507.08, 139,932.30 and 80,516.12

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Solution

The fourth proportional to 93,507.08, 139,932.30 and 80,516.12 is: 120,491.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,507.08 : 139,932.30 = 80,516.12 : x
  2. Step 2: Convert to fraction form
    93,507.08/139,932.30 = 80,516.12/x
  3. Step 3: Cross multiply
    93,507.08x = 139,932.30 × 80,516.12
  4. Step 4: Simplify right side
    93,507.08x = 11,266,805,858.68
  5. Step 5: Solve for x
    x = 11,266,805,858.68/93,507.08
  6. Step 6: Final answer
    x = 120,491.47

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1.5x scale

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.