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Finding the Fourth Proportional to 93,777.88, 129,414.90 and 51,340.36

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Solution

The fourth proportional to 93,777.88, 129,414.90 and 51,340.36 is: 70,850.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,777.88 : 129,414.90 = 51,340.36 : x
  2. Step 2: Convert to fraction form
    93,777.88/129,414.90 = 51,340.36/x
  3. Step 3: Cross multiply
    93,777.88x = 129,414.90 × 51,340.36
  4. Step 4: Simplify right side
    93,777.88x = 6,644,207,555.36
  5. Step 5: Solve for x
    x = 6,644,207,555.36/93,777.88
  6. Step 6: Final answer
    x = 70,850.48

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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.