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Finding the Fourth Proportional to 93,288.08, 139,899.72 and 30,944

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Solution

The fourth proportional to 93,288.08, 139,899.72 and 30,944 is: 46,405.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,288.08 : 139,899.72 = 30,944 : x
  2. Step 2: Convert to fraction form
    93,288.08/139,899.72 = 30,944/x
  3. Step 3: Cross multiply
    93,288.08x = 139,899.72 × 30,944
  4. Step 4: Simplify right side
    93,288.08x = 4,329,056,935.68
  5. Step 5: Solve for x
    x = 4,329,056,935.68/93,288.08
  6. Step 6: Final answer
    x = 46,405.25

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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.