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Finding the Fourth Proportional to 132,808.71, 183,255.06 and 74,653.98

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Solution

The fourth proportional to 132,808.71, 183,255.06 and 74,653.98 is: 103,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,808.71 : 183,255.06 = 74,653.98 : x
  2. Step 2: Convert to fraction form
    132,808.71/183,255.06 = 74,653.98/x
  3. Step 3: Cross multiply
    132,808.71x = 183,255.06 × 74,653.98
  4. Step 4: Simplify right side
    132,808.71x = 13,680,719,584.14
  5. Step 5: Solve for x
    x = 13,680,719,584.14/132,808.71
  6. Step 6: Final answer
    x = 103,010.71

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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.