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Finding the Fourth Proportional to 77,251.41, 106,617.74 and 55,810.52

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Solution

The fourth proportional to 77,251.41, 106,617.74 and 55,810.52 is: 77,026.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,251.41 : 106,617.74 = 55,810.52 : x
  2. Step 2: Convert to fraction form
    77,251.41/106,617.74 = 55,810.52/x
  3. Step 3: Cross multiply
    77,251.41x = 106,617.74 × 55,810.52
  4. Step 4: Simplify right side
    77,251.41x = 5,950,391,117.06
  5. Step 5: Solve for x
    x = 5,950,391,117.06/77,251.41
  6. Step 6: Final answer
    x = 77,026.31

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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.