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Finding the Fourth Proportional to 93,642.89, 129,227.19 and 51,201.43

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Solution

The fourth proportional to 93,642.89, 129,227.19 and 51,201.43 is: 70,657.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,642.89 : 129,227.19 = 51,201.43 : x
  2. Step 2: Convert to fraction form
    93,642.89/129,227.19 = 51,201.43/x
  3. Step 3: Cross multiply
    93,642.89x = 129,227.19 × 51,201.43
  4. Step 4: Simplify right side
    93,642.89x = 6,616,616,922.88
  5. Step 5: Solve for x
    x = 6,616,616,922.88/93,642.89
  6. Step 6: Final answer
    x = 70,657.97

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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.