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Finding the Fourth Proportional to 93,096, 128,481.12 and 53,352

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Solution

The fourth proportional to 93,096, 128,481.12 and 53,352 is: 73,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,096 : 128,481.12 = 53,352 : x
  2. Step 2: Convert to fraction form
    93,096/128,481.12 = 53,352/x
  3. Step 3: Cross multiply
    93,096x = 128,481.12 × 53,352
  4. Step 4: Simplify right side
    93,096x = 6,854,724,714.24
  5. Step 5: Solve for x
    x = 6,854,724,714.24/93,096
  6. Step 6: Final answer
    x = 73,630.71

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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.