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Finding the Fourth Proportional to 93,234.66, 128,622.84 and 63,009

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Solution

The fourth proportional to 93,234.66, 128,622.84 and 63,009 is: 86,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,234.66 : 128,622.84 = 63,009 : x
  2. Step 2: Convert to fraction form
    93,234.66/128,622.84 = 63,009/x
  3. Step 3: Cross multiply
    93,234.66x = 128,622.84 × 63,009
  4. Step 4: Simplify right side
    93,234.66x = 8,104,396,525.56
  5. Step 5: Solve for x
    x = 8,104,396,525.56/93,234.66
  6. Step 6: Final answer
    x = 86,924.72

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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.