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Finding the Fourth Proportional to 132,474.51, 182,816.16 and 72,046.51

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Solution

The fourth proportional to 132,474.51, 182,816.16 and 72,046.51 is: 99,424.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,474.51 : 182,816.16 = 72,046.51 : x
  2. Step 2: Convert to fraction form
    132,474.51/182,816.16 = 72,046.51/x
  3. Step 3: Cross multiply
    132,474.51x = 182,816.16 × 72,046.51
  4. Step 4: Simplify right side
    132,474.51x = 13,171,265,572.39
  5. Step 5: Solve for x
    x = 13,171,265,572.39/132,474.51
  6. Step 6: Final answer
    x = 99,424.91

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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.