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Finding the Fourth Proportional to 92,471.42, 127,603.22 and 56,656.53

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Solution

The fourth proportional to 92,471.42, 127,603.22 and 56,656.53 is: 78,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,471.42 : 127,603.22 = 56,656.53 : x
  2. Step 2: Convert to fraction form
    92,471.42/127,603.22 = 56,656.53/x
  3. Step 3: Cross multiply
    92,471.42x = 127,603.22 × 56,656.53
  4. Step 4: Simplify right side
    92,471.42x = 7,229,555,378.74
  5. Step 5: Solve for x
    x = 7,229,555,378.74/92,471.42
  6. Step 6: Final answer
    x = 78,181.51

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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.