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Finding the Fourth Proportional to 84,799.96, 127,227.58 and 42,658.29

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Solution

The fourth proportional to 84,799.96, 127,227.58 and 42,658.29 is: 64,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,799.96 : 127,227.58 = 42,658.29 : x
  2. Step 2: Convert to fraction form
    84,799.96/127,227.58 = 42,658.29/x
  3. Step 3: Cross multiply
    84,799.96x = 127,227.58 × 42,658.29
  4. Step 4: Simplify right side
    84,799.96x = 5,427,311,056.03
  5. Step 5: Solve for x
    x = 5,427,311,056.03/84,799.96
  6. Step 6: Final answer
    x = 64,001.34

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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.