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Finding the Fourth Proportional to 88,595.52, 132,938.40 and 55,308.48

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Solution

The fourth proportional to 88,595.52, 132,938.40 and 55,308.48 is: 82,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,595.52 : 132,938.40 = 55,308.48 : x
  2. Step 2: Convert to fraction form
    88,595.52/132,938.40 = 55,308.48/x
  3. Step 3: Cross multiply
    88,595.52x = 132,938.40 × 55,308.48
  4. Step 4: Simplify right side
    88,595.52x = 7,352,620,837.63
  5. Step 5: Solve for x
    x = 7,352,620,837.63/88,595.52
  6. Step 6: Final answer
    x = 82,990.89

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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.