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Finding the Fourth Proportional to 115,238.56, 172,857.84 and 36,360.76

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Solution

The fourth proportional to 115,238.56, 172,857.84 and 36,360.76 is: 54,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,238.56 : 172,857.84 = 36,360.76 : x
  2. Step 2: Convert to fraction form
    115,238.56/172,857.84 = 36,360.76/x
  3. Step 3: Cross multiply
    115,238.56x = 172,857.84 × 36,360.76
  4. Step 4: Simplify right side
    115,238.56x = 6,285,242,434.36
  5. Step 5: Solve for x
    x = 6,285,242,434.36/115,238.56
  6. Step 6: Final answer
    x = 54,541.14

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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.