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Finding the Fourth Proportional to 93,392, 140,089.28 and 31,062.56

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Solution

The fourth proportional to 93,392, 140,089.28 and 31,062.56 is: 46,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,392 : 140,089.28 = 31,062.56 : x
  2. Step 2: Convert to fraction form
    93,392/140,089.28 = 31,062.56/x
  3. Step 3: Cross multiply
    93,392x = 140,089.28 × 31,062.56
  4. Step 4: Simplify right side
    93,392x = 4,351,531,665.36
  5. Step 5: Solve for x
    x = 4,351,531,665.36/93,392
  6. Step 6: Final answer
    x = 46,594.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.