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Finding the Fourth Proportional to 93,550.92, 139,992.86 and 74,950.50

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Solution

The fourth proportional to 93,550.92, 139,992.86 and 74,950.50 is: 112,158.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,550.92 : 139,992.86 = 74,950.50 : x
  2. Step 2: Convert to fraction form
    93,550.92/139,992.86 = 74,950.50/x
  3. Step 3: Cross multiply
    93,550.92x = 139,992.86 × 74,950.50
  4. Step 4: Simplify right side
    93,550.92x = 10,492,534,853.43
  5. Step 5: Solve for x
    x = 10,492,534,853.43/93,550.92
  6. Step 6: Final answer
    x = 112,158.54

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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.