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Finding the Fourth Proportional to 71,602.68, 98,789.45 and 41,376.99

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Solution

The fourth proportional to 71,602.68, 98,789.45 and 41,376.99 is: 57,087.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,602.68 : 98,789.45 = 41,376.99 : x
  2. Step 2: Convert to fraction form
    71,602.68/98,789.45 = 41,376.99/x
  3. Step 3: Cross multiply
    71,602.68x = 98,789.45 × 41,376.99
  4. Step 4: Simplify right side
    71,602.68x = 4,087,609,694.25
  5. Step 5: Solve for x
    x = 4,087,609,694.25/71,602.68
  6. Step 6: Final answer
    x = 57,087.39

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1.5x scale

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.