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Finding the Fourth Proportional to 65,215.70, 97,823.55 and 60,809.30

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Solution

The fourth proportional to 65,215.70, 97,823.55 and 60,809.30 is: 91,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.70 : 97,823.55 = 60,809.30 : x
  2. Step 2: Convert to fraction form
    65,215.70/97,823.55 = 60,809.30/x
  3. Step 3: Cross multiply
    65,215.70x = 97,823.55 × 60,809.30
  4. Step 4: Simplify right side
    65,215.70x = 5,948,581,599.02
  5. Step 5: Solve for x
    x = 5,948,581,599.02/65,215.70
  6. Step 6: Final answer
    x = 91,213.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.