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Finding the Fourth Proportional to 77,303.90, 115,955.85 and 27,372.06

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Solution

The fourth proportional to 77,303.90, 115,955.85 and 27,372.06 is: 41,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,303.90 : 115,955.85 = 27,372.06 : x
  2. Step 2: Convert to fraction form
    77,303.90/115,955.85 = 27,372.06/x
  3. Step 3: Cross multiply
    77,303.90x = 115,955.85 × 27,372.06
  4. Step 4: Simplify right side
    77,303.90x = 3,173,950,586.20
  5. Step 5: Solve for x
    x = 3,173,950,586.20/77,303.90
  6. Step 6: Final answer
    x = 41,058.09

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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.