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Finding the Fourth Proportional to 93,574.88, 129,269.92 and 80,977.76

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Solution

The fourth proportional to 93,574.88, 129,269.92 and 80,977.76 is: 111,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,574.88 : 129,269.92 = 80,977.76 : x
  2. Step 2: Convert to fraction form
    93,574.88/129,269.92 = 80,977.76/x
  3. Step 3: Cross multiply
    93,574.88x = 129,269.92 × 80,977.76
  4. Step 4: Simplify right side
    93,574.88x = 10,467,988,556.98
  5. Step 5: Solve for x
    x = 10,467,988,556.98/93,574.88
  6. Step 6: Final answer
    x = 111,867.51

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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.