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Finding the Fourth Proportional to 124,618.56, 171,976.56 and 68,030.36

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Solution

The fourth proportional to 124,618.56, 171,976.56 and 68,030.36 is: 93,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,618.56 : 171,976.56 = 68,030.36 : x
  2. Step 2: Convert to fraction form
    124,618.56/171,976.56 = 68,030.36/x
  3. Step 3: Cross multiply
    124,618.56x = 171,976.56 × 68,030.36
  4. Step 4: Simplify right side
    124,618.56x = 11,699,627,288.36
  5. Step 5: Solve for x
    x = 11,699,627,288.36/124,618.56
  6. Step 6: Final answer
    x = 93,883.51

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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.