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Finding the Fourth Proportional to 58,135.68, 87,143.04 and 26,945.28

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Solution

The fourth proportional to 58,135.68, 87,143.04 and 26,945.28 is: 40,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,135.68 : 87,143.04 = 26,945.28 : x
  2. Step 2: Convert to fraction form
    58,135.68/87,143.04 = 26,945.28/x
  3. Step 3: Cross multiply
    58,135.68x = 87,143.04 × 26,945.28
  4. Step 4: Simplify right side
    58,135.68x = 2,348,093,612.85
  5. Step 5: Solve for x
    x = 2,348,093,612.85/58,135.68
  6. Step 6: Final answer
    x = 40,389.89

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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.