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Finding the Fourth Proportional to 108,838.46, 163,320.73 and 45,652.94

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Solution

The fourth proportional to 108,838.46, 163,320.73 and 45,652.94 is: 68,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,838.46 : 163,320.73 = 45,652.94 : x
  2. Step 2: Convert to fraction form
    108,838.46/163,320.73 = 45,652.94/x
  3. Step 3: Cross multiply
    108,838.46x = 163,320.73 × 45,652.94
  4. Step 4: Simplify right side
    108,838.46x = 7,456,071,487.45
  5. Step 5: Solve for x
    x = 7,456,071,487.45/108,838.46
  6. Step 6: Final answer
    x = 68,505.85

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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.