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Finding the Fourth Proportional to 118,730.48, 163,846.87 and 65,016.27

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Solution

The fourth proportional to 118,730.48, 163,846.87 and 65,016.27 is: 89,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,730.48 : 163,846.87 = 65,016.27 : x
  2. Step 2: Convert to fraction form
    118,730.48/163,846.87 = 65,016.27/x
  3. Step 3: Cross multiply
    118,730.48x = 163,846.87 × 65,016.27
  4. Step 4: Simplify right side
    118,730.48x = 10,652,712,176.03
  5. Step 5: Solve for x
    x = 10,652,712,176.03/118,730.48
  6. Step 6: Final answer
    x = 89,721.80

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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.