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Finding the Fourth Proportional to 124,028.88, 171,164.36 and 71,047.12

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Solution

The fourth proportional to 124,028.88, 171,164.36 and 71,047.12 is: 98,047.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,028.88 : 171,164.36 = 71,047.12 : x
  2. Step 2: Convert to fraction form
    124,028.88/171,164.36 = 71,047.12/x
  3. Step 3: Cross multiply
    124,028.88x = 171,164.36 × 71,047.12
  4. Step 4: Simplify right side
    124,028.88x = 12,160,734,824.64
  5. Step 5: Solve for x
    x = 12,160,734,824.64/124,028.88
  6. Step 6: Final answer
    x = 98,047.61

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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.