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Finding the Fourth Proportional to 92,507.37, 138,816.41 and 39,916.85

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Solution

The fourth proportional to 92,507.37, 138,816.41 and 39,916.85 is: 59,899.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,507.37 : 138,816.41 = 39,916.85 : x
  2. Step 2: Convert to fraction form
    92,507.37/138,816.41 = 39,916.85/x
  3. Step 3: Cross multiply
    92,507.37x = 138,816.41 × 39,916.85
  4. Step 4: Simplify right side
    92,507.37x = 5,541,114,262.34
  5. Step 5: Solve for x
    x = 5,541,114,262.34/92,507.37
  6. Step 6: Final answer
    x = 59,899.17

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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.