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Finding the Fourth Proportional to 92,842.80, 139,270.12 and 26,288.17

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Solution

The fourth proportional to 92,842.80, 139,270.12 and 26,288.17 is: 39,433.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,842.80 : 139,270.12 = 26,288.17 : x
  2. Step 2: Convert to fraction form
    92,842.80/139,270.12 = 26,288.17/x
  3. Step 3: Cross multiply
    92,842.80x = 139,270.12 × 26,288.17
  4. Step 4: Simplify right side
    92,842.80x = 3,661,156,590.48
  5. Step 5: Solve for x
    x = 3,661,156,590.48/92,842.80
  6. Step 6: Final answer
    x = 39,433.93

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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.