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Finding the Fourth Proportional to 88,344.80, 132,530.40 and 29,186.72

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Solution

The fourth proportional to 88,344.80, 132,530.40 and 29,186.72 is: 43,784.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,344.80 : 132,530.40 = 29,186.72 : x
  2. Step 2: Convert to fraction form
    88,344.80/132,530.40 = 29,186.72/x
  3. Step 3: Cross multiply
    88,344.80x = 132,530.40 × 29,186.72
  4. Step 4: Simplify right side
    88,344.80x = 3,868,127,676.29
  5. Step 5: Solve for x
    x = 3,868,127,676.29/88,344.80
  6. Step 6: Final answer
    x = 43,784.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.