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Finding the Fourth Proportional to 92,346.80, 127,408.64 and 56,499.44

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Solution

The fourth proportional to 92,346.80, 127,408.64 and 56,499.44 is: 77,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,346.80 : 127,408.64 = 56,499.44 : x
  2. Step 2: Convert to fraction form
    92,346.80/127,408.64 = 56,499.44/x
  3. Step 3: Cross multiply
    92,346.80x = 127,408.64 × 56,499.44
  4. Step 4: Simplify right side
    92,346.80x = 7,198,516,811.16
  5. Step 5: Solve for x
    x = 7,198,516,811.16/92,346.80
  6. Step 6: Final answer
    x = 77,950.91

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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.