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Finding the Fourth Proportional to 108,606.98, 149,826.96 and 68,342.96

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Solution

The fourth proportional to 108,606.98, 149,826.96 and 68,342.96 is: 94,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,606.98 : 149,826.96 = 68,342.96 : x
  2. Step 2: Convert to fraction form
    108,606.98/149,826.96 = 68,342.96/x
  3. Step 3: Cross multiply
    108,606.98x = 149,826.96 × 68,342.96
  4. Step 4: Simplify right side
    108,606.98x = 10,239,617,934.20
  5. Step 5: Solve for x
    x = 10,239,617,934.20/108,606.98
  6. Step 6: Final answer
    x = 94,281.40

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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.