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Finding the Fourth Proportional to 183,461.72, 253,074.66 and 115,453.31

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Solution

The fourth proportional to 183,461.72, 253,074.66 and 115,453.31 is: 159,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,461.72 : 253,074.66 = 115,453.31 : x
  2. Step 2: Convert to fraction form
    183,461.72/253,074.66 = 115,453.31/x
  3. Step 3: Cross multiply
    183,461.72x = 253,074.66 × 115,453.31
  4. Step 4: Simplify right side
    183,461.72x = 29,218,307,174.12
  5. Step 5: Solve for x
    x = 29,218,307,174.12/183,461.72
  6. Step 6: Final answer
    x = 159,261.06

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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.