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Finding the Fourth Proportional to 132,011.51, 182,175.50 and 71,581.95

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Solution

The fourth proportional to 132,011.51, 182,175.50 and 71,581.95 is: 98,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,011.51 : 182,175.50 = 71,581.95 : x
  2. Step 2: Convert to fraction form
    132,011.51/182,175.50 = 71,581.95/x
  3. Step 3: Cross multiply
    132,011.51x = 182,175.50 × 71,581.95
  4. Step 4: Simplify right side
    132,011.51x = 13,040,477,711.18
  5. Step 5: Solve for x
    x = 13,040,477,711.18/132,011.51
  6. Step 6: Final answer
    x = 98,782.89

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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.