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Finding the Fourth Proportional to 93,960.68, 129,664.80 and 51,519.12

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Solution

The fourth proportional to 93,960.68, 129,664.80 and 51,519.12 is: 71,095.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,960.68 : 129,664.80 = 51,519.12 : x
  2. Step 2: Convert to fraction form
    93,960.68/129,664.80 = 51,519.12/x
  3. Step 3: Cross multiply
    93,960.68x = 129,664.80 × 51,519.12
  4. Step 4: Simplify right side
    93,960.68x = 6,680,216,390.98
  5. Step 5: Solve for x
    x = 6,680,216,390.98/93,960.68
  6. Step 6: Final answer
    x = 71,095.87

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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.