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Finding the Fourth Proportional to 65,592.18, 90,524.16 and 40,113.44

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Solution

The fourth proportional to 65,592.18, 90,524.16 and 40,113.44 is: 55,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,592.18 : 90,524.16 = 40,113.44 : x
  2. Step 2: Convert to fraction form
    65,592.18/90,524.16 = 40,113.44/x
  3. Step 3: Cross multiply
    65,592.18x = 90,524.16 × 40,113.44
  4. Step 4: Simplify right side
    65,592.18x = 3,631,235,460.71
  5. Step 5: Solve for x
    x = 3,631,235,460.71/65,592.18
  6. Step 6: Final answer
    x = 55,360.80

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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.