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Finding the Fourth Proportional to 132,512.51, 182,868.71 and 72,083.31

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Solution

The fourth proportional to 132,512.51, 182,868.71 and 72,083.31 is: 99,475.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,512.51 : 182,868.71 = 72,083.31 : x
  2. Step 2: Convert to fraction form
    132,512.51/182,868.71 = 72,083.31/x
  3. Step 3: Cross multiply
    132,512.51x = 182,868.71 × 72,083.31
  4. Step 4: Simplify right side
    132,512.51x = 13,181,781,551.81
  5. Step 5: Solve for x
    x = 13,181,781,551.81/132,512.51
  6. Step 6: Final answer
    x = 99,475.76

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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.