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Finding the Fourth Proportional to 65,632.80, 98,348.40 and 48,914.40

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Solution

The fourth proportional to 65,632.80, 98,348.40 and 48,914.40 is: 73,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,632.80 : 98,348.40 = 48,914.40 : x
  2. Step 2: Convert to fraction form
    65,632.80/98,348.40 = 48,914.40/x
  3. Step 3: Cross multiply
    65,632.80x = 98,348.40 × 48,914.40
  4. Step 4: Simplify right side
    65,632.80x = 4,810,652,976.96
  5. Step 5: Solve for x
    x = 4,810,652,976.96/65,632.80
  6. Step 6: Final answer
    x = 73,296.48

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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.