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Finding the Fourth Proportional to 183,455.72, 253,061.44 and 115,364.96

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Solution

The fourth proportional to 183,455.72, 253,061.44 and 115,364.96 is: 159,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,455.72 : 253,061.44 = 115,364.96 : x
  2. Step 2: Convert to fraction form
    183,455.72/253,061.44 = 115,364.96/x
  3. Step 3: Cross multiply
    183,455.72x = 253,061.44 × 115,364.96
  4. Step 4: Simplify right side
    183,455.72x = 29,194,422,903.14
  5. Step 5: Solve for x
    x = 29,194,422,903.14/183,455.72
  6. Step 6: Final answer
    x = 159,136.07

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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.