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Finding the Fourth Proportional to 187,771.04, 259,124 and 112,337.28

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Solution

The fourth proportional to 187,771.04, 259,124 and 112,337.28 is: 155,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,771.04 : 259,124 = 112,337.28 : x
  2. Step 2: Convert to fraction form
    187,771.04/259,124 = 112,337.28/x
  3. Step 3: Cross multiply
    187,771.04x = 259,124 × 112,337.28
  4. Step 4: Simplify right side
    187,771.04x = 29,109,285,342.72
  5. Step 5: Solve for x
    x = 29,109,285,342.72/187,771.04
  6. Step 6: Final answer
    x = 155,025.43

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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.