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Finding the Fourth Proportional to 65,152.56, 89,910.36 and 35,344.56

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Solution

The fourth proportional to 65,152.56, 89,910.36 and 35,344.56 is: 48,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,152.56 : 89,910.36 = 35,344.56 : x
  2. Step 2: Convert to fraction form
    65,152.56/89,910.36 = 35,344.56/x
  3. Step 3: Cross multiply
    65,152.56x = 89,910.36 × 35,344.56
  4. Step 4: Simplify right side
    65,152.56x = 3,177,842,113.64
  5. Step 5: Solve for x
    x = 3,177,842,113.64/65,152.56
  6. Step 6: Final answer
    x = 48,775.40

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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.