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Finding the Fourth Proportional to 93,367.89, 139,980.05 and 48,340.97

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Solution

The fourth proportional to 93,367.89, 139,980.05 and 48,340.97 is: 72,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,367.89 : 139,980.05 = 48,340.97 : x
  2. Step 2: Convert to fraction form
    93,367.89/139,980.05 = 48,340.97/x
  3. Step 3: Cross multiply
    93,367.89x = 139,980.05 × 48,340.97
  4. Step 4: Simplify right side
    93,367.89x = 6,766,771,162.25
  5. Step 5: Solve for x
    x = 6,766,771,162.25/93,367.89
  6. Step 6: Final answer
    x = 72,474.29

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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.