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Finding the Fourth Proportional to 108,688.88, 162,892.99 and 48,673.51

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Solution

The fourth proportional to 108,688.88, 162,892.99 and 48,673.51 is: 72,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,688.88 : 162,892.99 = 48,673.51 : x
  2. Step 2: Convert to fraction form
    108,688.88/162,892.99 = 48,673.51/x
  3. Step 3: Cross multiply
    108,688.88x = 162,892.99 × 48,673.51
  4. Step 4: Simplify right side
    108,688.88x = 7,928,573,231.30
  5. Step 5: Solve for x
    x = 7,928,573,231.30/108,688.88
  6. Step 6: Final answer
    x = 72,947.42

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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.