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Finding the Fourth Proportional to 124,041.18, 171,184.31 and 73,087.88

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Solution

The fourth proportional to 124,041.18, 171,184.31 and 73,087.88 is: 100,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,041.18 : 171,184.31 = 73,087.88 : x
  2. Step 2: Convert to fraction form
    124,041.18/171,184.31 = 73,087.88/x
  3. Step 3: Cross multiply
    124,041.18x = 171,184.31 × 73,087.88
  4. Step 4: Simplify right side
    124,041.18x = 12,511,497,085.80
  5. Step 5: Solve for x
    x = 12,511,497,085.80/124,041.18
  6. Step 6: Final answer
    x = 100,865.67

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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.