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Finding the Fourth Proportional to 124,765.73, 187,109.34 and 40,506.42

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Solution

The fourth proportional to 124,765.73, 187,109.34 and 40,506.42 is: 60,746.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,765.73 : 187,109.34 = 40,506.42 : x
  2. Step 2: Convert to fraction form
    124,765.73/187,109.34 = 40,506.42/x
  3. Step 3: Cross multiply
    124,765.73x = 187,109.34 × 40,506.42
  4. Step 4: Simplify right side
    124,765.73x = 7,579,129,511.96
  5. Step 5: Solve for x
    x = 7,579,129,511.96/124,765.73
  6. Step 6: Final answer
    x = 60,746.89

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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.