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Finding the Fourth Proportional to 93,174.75, 128,574.54 and 52,889.31

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Solution

The fourth proportional to 93,174.75, 128,574.54 and 52,889.31 is: 72,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,174.75 : 128,574.54 = 52,889.31 : x
  2. Step 2: Convert to fraction form
    93,174.75/128,574.54 = 52,889.31/x
  3. Step 3: Cross multiply
    93,174.75x = 128,574.54 × 52,889.31
  4. Step 4: Simplify right side
    93,174.75x = 6,800,218,704.17
  5. Step 5: Solve for x
    x = 6,800,218,704.17/93,174.75
  6. Step 6: Final answer
    x = 72,983.49

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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.