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Finding the Fourth Proportional to 92,765.40, 139,114.54 and 39,460.92

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Solution

The fourth proportional to 92,765.40, 139,114.54 and 39,460.92 is: 59,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,765.40 : 139,114.54 = 39,460.92 : x
  2. Step 2: Convert to fraction form
    92,765.40/139,114.54 = 39,460.92/x
  3. Step 3: Cross multiply
    92,765.40x = 139,114.54 × 39,460.92
  4. Step 4: Simplify right side
    92,765.40x = 5,489,587,932.96
  5. Step 5: Solve for x
    x = 5,489,587,932.96/92,765.40
  6. Step 6: Final answer
    x = 59,177.11

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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.