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Finding the Fourth Proportional to 58,787.69, 81,150.26 and 40,893.08

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Solution

The fourth proportional to 58,787.69, 81,150.26 and 40,893.08 is: 56,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,787.69 : 81,150.26 = 40,893.08 : x
  2. Step 2: Convert to fraction form
    58,787.69/81,150.26 = 40,893.08/x
  3. Step 3: Cross multiply
    58,787.69x = 81,150.26 × 40,893.08
  4. Step 4: Simplify right side
    58,787.69x = 3,318,484,074.20
  5. Step 5: Solve for x
    x = 3,318,484,074.20/58,787.69
  6. Step 6: Final answer
    x = 56,448.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.