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Finding the Fourth Proportional to 124,316.56, 171,561 and 67,733.20

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Solution

The fourth proportional to 124,316.56, 171,561 and 67,733.20 is: 93,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,316.56 : 171,561 = 67,733.20 : x
  2. Step 2: Convert to fraction form
    124,316.56/171,561 = 67,733.20/x
  3. Step 3: Cross multiply
    124,316.56x = 171,561 × 67,733.20
  4. Step 4: Simplify right side
    124,316.56x = 11,620,375,525.20
  5. Step 5: Solve for x
    x = 11,620,375,525.20/124,316.56
  6. Step 6: Final answer
    x = 93,474.08

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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.