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Finding the Fourth Proportional to 108,892.10, 150,260.64 and 61,134.50

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Solution

The fourth proportional to 108,892.10, 150,260.64 and 61,134.50 is: 84,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,892.10 : 150,260.64 = 61,134.50 : x
  2. Step 2: Convert to fraction form
    108,892.10/150,260.64 = 61,134.50/x
  3. Step 3: Cross multiply
    108,892.10x = 150,260.64 × 61,134.50
  4. Step 4: Simplify right side
    108,892.10x = 9,186,109,096.08
  5. Step 5: Solve for x
    x = 9,186,109,096.08/108,892.10
  6. Step 6: Final answer
    x = 84,359.74

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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.