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Finding the Fourth Proportional to 61,787.99, 92,682.50 and 40,458.69

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Solution

The fourth proportional to 61,787.99, 92,682.50 and 40,458.69 is: 60,688.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,787.99 : 92,682.50 = 40,458.69 : x
  2. Step 2: Convert to fraction form
    61,787.99/92,682.50 = 40,458.69/x
  3. Step 3: Cross multiply
    61,787.99x = 92,682.50 × 40,458.69
  4. Step 4: Simplify right side
    61,787.99x = 3,749,812,333.63
  5. Step 5: Solve for x
    x = 3,749,812,333.63/61,787.99
  6. Step 6: Final answer
    x = 60,688.37

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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.