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Finding the Fourth Proportional to 93,134.68, 128,467.86 and 56,819.56

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Solution

The fourth proportional to 93,134.68, 128,467.86 and 56,819.56 is: 78,375.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,134.68 : 128,467.86 = 56,819.56 : x
  2. Step 2: Convert to fraction form
    93,134.68/128,467.86 = 56,819.56/x
  3. Step 3: Cross multiply
    93,134.68x = 128,467.86 × 56,819.56
  4. Step 4: Simplify right side
    93,134.68x = 7,299,487,279.34
  5. Step 5: Solve for x
    x = 7,299,487,279.34/93,134.68
  6. Step 6: Final answer
    x = 78,375.61

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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.