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Finding the Fourth Proportional to 132,348.86, 182,641.30 and 71,919.37

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Solution

The fourth proportional to 132,348.86, 182,641.30 and 71,919.37 is: 99,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,348.86 : 182,641.30 = 71,919.37 : x
  2. Step 2: Convert to fraction form
    132,348.86/182,641.30 = 71,919.37/x
  3. Step 3: Cross multiply
    132,348.86x = 182,641.30 × 71,919.37
  4. Step 4: Simplify right side
    132,348.86x = 13,135,446,595.58
  5. Step 5: Solve for x
    x = 13,135,446,595.58/132,348.86
  6. Step 6: Final answer
    x = 99,248.66

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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.