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Finding the Fourth Proportional to 93,396.72, 128,898.23 and 52,007.88

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Solution

The fourth proportional to 93,396.72, 128,898.23 and 52,007.88 is: 71,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,396.72 : 128,898.23 = 52,007.88 : x
  2. Step 2: Convert to fraction form
    93,396.72/128,898.23 = 52,007.88/x
  3. Step 3: Cross multiply
    93,396.72x = 128,898.23 × 52,007.88
  4. Step 4: Simplify right side
    93,396.72x = 6,703,723,678.05
  5. Step 5: Solve for x
    x = 6,703,723,678.05/93,396.72
  6. Step 6: Final answer
    x = 71,776.86

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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.