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Finding the Fourth Proportional to 150,558.88, 207,754.32 and 93,172

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Solution

The fourth proportional to 150,558.88, 207,754.32 and 93,172 is: 128,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,558.88 : 207,754.32 = 93,172 : x
  2. Step 2: Convert to fraction form
    150,558.88/207,754.32 = 93,172/x
  3. Step 3: Cross multiply
    150,558.88x = 207,754.32 × 93,172
  4. Step 4: Simplify right side
    150,558.88x = 19,356,885,503.04
  5. Step 5: Solve for x
    x = 19,356,885,503.04/150,558.88
  6. Step 6: Final answer
    x = 128,566.88

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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.