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Finding the Fourth Proportional to 65,247.40, 97,874.30 and 34,143.40

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Solution

The fourth proportional to 65,247.40, 97,874.30 and 34,143.40 is: 51,216.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,247.40 : 97,874.30 = 34,143.40 : x
  2. Step 2: Convert to fraction form
    65,247.40/97,874.30 = 34,143.40/x
  3. Step 3: Cross multiply
    65,247.40x = 97,874.30 × 34,143.40
  4. Step 4: Simplify right side
    65,247.40x = 3,341,761,374.62
  5. Step 5: Solve for x
    x = 3,341,761,374.62/65,247.40
  6. Step 6: Final answer
    x = 51,216.77

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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.