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Finding the Fourth Proportional to 132,611.83, 183,008.27 and 81,653.96

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Solution

The fourth proportional to 132,611.83, 183,008.27 and 81,653.96 is: 112,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,611.83 : 183,008.27 = 81,653.96 : x
  2. Step 2: Convert to fraction form
    132,611.83/183,008.27 = 81,653.96/x
  3. Step 3: Cross multiply
    132,611.83x = 183,008.27 × 81,653.96
  4. Step 4: Simplify right side
    132,611.83x = 14,943,349,549.98
  5. Step 5: Solve for x
    x = 14,943,349,549.98/132,611.83
  6. Step 6: Final answer
    x = 112,684.89

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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.