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Finding the Fourth Proportional to 108,039.59, 162,059.36 and 29,153.81

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Solution

The fourth proportional to 108,039.59, 162,059.36 and 29,153.81 is: 43,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,039.59 : 162,059.36 = 29,153.81 : x
  2. Step 2: Convert to fraction form
    108,039.59/162,059.36 = 29,153.81/x
  3. Step 3: Cross multiply
    108,039.59x = 162,059.36 × 29,153.81
  4. Step 4: Simplify right side
    108,039.59x = 4,724,646,834.10
  5. Step 5: Solve for x
    x = 4,724,646,834.10/108,039.59
  6. Step 6: Final answer
    x = 43,730.70

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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.