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Finding the Fourth Proportional to 93,520.32, 129,055.96 and 51,079

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Solution

The fourth proportional to 93,520.32, 129,055.96 and 51,079 is: 70,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,520.32 : 129,055.96 = 51,079 : x
  2. Step 2: Convert to fraction form
    93,520.32/129,055.96 = 51,079/x
  3. Step 3: Cross multiply
    93,520.32x = 129,055.96 × 51,079
  4. Step 4: Simplify right side
    93,520.32x = 6,592,049,380.84
  5. Step 5: Solve for x
    x = 6,592,049,380.84/93,520.32
  6. Step 6: Final answer
    x = 70,487.88

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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.