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Finding the Fourth Proportional to 93,098.70, 139,634.24 and 33,920.55

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Solution

The fourth proportional to 93,098.70, 139,634.24 and 33,920.55 is: 50,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,098.70 : 139,634.24 = 33,920.55 : x
  2. Step 2: Convert to fraction form
    93,098.70/139,634.24 = 33,920.55/x
  3. Step 3: Cross multiply
    93,098.70x = 139,634.24 × 33,920.55
  4. Step 4: Simplify right side
    93,098.70x = 4,736,470,050.03
  5. Step 5: Solve for x
    x = 4,736,470,050.03/93,098.70
  6. Step 6: Final answer
    x = 50,875.79

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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.