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Finding the Fourth Proportional to 65,370.84, 98,056.32 and 45,687.84

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Solution

The fourth proportional to 65,370.84, 98,056.32 and 45,687.84 is: 68,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,370.84 : 98,056.32 = 45,687.84 : x
  2. Step 2: Convert to fraction form
    65,370.84/98,056.32 = 45,687.84/x
  3. Step 3: Cross multiply
    65,370.84x = 98,056.32 × 45,687.84
  4. Step 4: Simplify right side
    65,370.84x = 4,479,981,459.15
  5. Step 5: Solve for x
    x = 4,479,981,459.15/65,370.84
  6. Step 6: Final answer
    x = 68,531.80

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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.