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Finding the Fourth Proportional to 58,890.24, 81,168.48 and 41,018.40

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Solution

The fourth proportional to 58,890.24, 81,168.48 and 41,018.40 is: 56,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,890.24 : 81,168.48 = 41,018.40 : x
  2. Step 2: Convert to fraction form
    58,890.24/81,168.48 = 41,018.40/x
  3. Step 3: Cross multiply
    58,890.24x = 81,168.48 × 41,018.40
  4. Step 4: Simplify right side
    58,890.24x = 3,329,401,180.03
  5. Step 5: Solve for x
    x = 3,329,401,180.03/58,890.24
  6. Step 6: Final answer
    x = 56,535.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.