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Finding the Fourth Proportional to 92,620.76, 127,822.54 and 56,805.89

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Solution

The fourth proportional to 92,620.76, 127,822.54 and 56,805.89 is: 78,395.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,620.76 : 127,822.54 = 56,805.89 : x
  2. Step 2: Convert to fraction form
    92,620.76/127,822.54 = 56,805.89/x
  3. Step 3: Cross multiply
    92,620.76x = 127,822.54 × 56,805.89
  4. Step 4: Simplify right side
    92,620.76x = 7,261,073,146.76
  5. Step 5: Solve for x
    x = 7,261,073,146.76/92,620.76
  6. Step 6: Final answer
    x = 78,395.74

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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.