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Finding the Fourth Proportional to 124,493.56, 171,801.06 and 67,905.28

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Solution

The fourth proportional to 124,493.56, 171,801.06 and 67,905.28 is: 93,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,493.56 : 171,801.06 = 67,905.28 : x
  2. Step 2: Convert to fraction form
    124,493.56/171,801.06 = 67,905.28/x
  3. Step 3: Cross multiply
    124,493.56x = 171,801.06 × 67,905.28
  4. Step 4: Simplify right side
    124,493.56x = 11,666,199,083.60
  5. Step 5: Solve for x
    x = 11,666,199,083.60/124,493.56
  6. Step 6: Final answer
    x = 93,709.26

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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.