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Finding the Fourth Proportional to 93,164.80, 139,747.20 and 30,835.30

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Solution

The fourth proportional to 93,164.80, 139,747.20 and 30,835.30 is: 46,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,164.80 : 139,747.20 = 30,835.30 : x
  2. Step 2: Convert to fraction form
    93,164.80/139,747.20 = 30,835.30/x
  3. Step 3: Cross multiply
    93,164.80x = 139,747.20 × 30,835.30
  4. Step 4: Simplify right side
    93,164.80x = 4,309,146,836.16
  5. Step 5: Solve for x
    x = 4,309,146,836.16/93,164.80
  6. Step 6: Final answer
    x = 46,252.95

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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.