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Finding the Fourth Proportional to 132,959.51, 183,507.92 and 79,247.93

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Solution

The fourth proportional to 132,959.51, 183,507.92 and 79,247.93 is: 109,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,959.51 : 183,507.92 = 79,247.93 : x
  2. Step 2: Convert to fraction form
    132,959.51/183,507.92 = 79,247.93/x
  3. Step 3: Cross multiply
    132,959.51x = 183,507.92 × 79,247.93
  4. Step 4: Simplify right side
    132,959.51x = 14,542,622,798.61
  5. Step 5: Solve for x
    x = 14,542,622,798.61/132,959.51
  6. Step 6: Final answer
    x = 109,376.33

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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.