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Finding the Fourth Proportional to 132,790.82, 183,248.95 and 72,361.95

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Solution

The fourth proportional to 132,790.82, 183,248.95 and 72,361.95 is: 99,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,790.82 : 183,248.95 = 72,361.95 : x
  2. Step 2: Convert to fraction form
    132,790.82/183,248.95 = 72,361.95/x
  3. Step 3: Cross multiply
    132,790.82x = 183,248.95 × 72,361.95
  4. Step 4: Simplify right side
    132,790.82x = 13,260,250,995.64
  5. Step 5: Solve for x
    x = 13,260,250,995.64/132,790.82
  6. Step 6: Final answer
    x = 99,858.19

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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.