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Finding the Fourth Proportional to 108,301.61, 162,453.09 and 70,893.09

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Solution

The fourth proportional to 108,301.61, 162,453.09 and 70,893.09 is: 106,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,301.61 : 162,453.09 = 70,893.09 : x
  2. Step 2: Convert to fraction form
    108,301.61/162,453.09 = 70,893.09/x
  3. Step 3: Cross multiply
    108,301.61x = 162,453.09 × 70,893.09
  4. Step 4: Simplify right side
    108,301.61x = 11,516,801,110.65
  5. Step 5: Solve for x
    x = 11,516,801,110.65/108,301.61
  6. Step 6: Final answer
    x = 106,340.08

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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.