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Finding the Fourth Proportional to 108,596.70, 149,835.06 and 62,645.22

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Solution

The fourth proportional to 108,596.70, 149,835.06 and 62,645.22 is: 86,434.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,596.70 : 149,835.06 = 62,645.22 : x
  2. Step 2: Convert to fraction form
    108,596.70/149,835.06 = 62,645.22/x
  3. Step 3: Cross multiply
    108,596.70x = 149,835.06 × 62,645.22
  4. Step 4: Simplify right side
    108,596.70x = 9,386,450,297.41
  5. Step 5: Solve for x
    x = 9,386,450,297.41/108,596.70
  6. Step 6: Final answer
    x = 86,434.03

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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.