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Finding the Fourth Proportional to 93,111.70, 139,689.42 and 26,552.80

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Solution

The fourth proportional to 93,111.70, 139,689.42 and 26,552.80 is: 39,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,111.70 : 139,689.42 = 26,552.80 : x
  2. Step 2: Convert to fraction form
    93,111.70/139,689.42 = 26,552.80/x
  3. Step 3: Cross multiply
    93,111.70x = 139,689.42 × 26,552.80
  4. Step 4: Simplify right side
    93,111.70x = 3,709,145,231.38
  5. Step 5: Solve for x
    x = 3,709,145,231.38/93,111.70
  6. Step 6: Final answer
    x = 39,835.44

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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.