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Finding the Fourth Proportional to 108,544.80, 162,817.20 and 98,695.20

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Solution

The fourth proportional to 108,544.80, 162,817.20 and 98,695.20 is: 148,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,544.80 : 162,817.20 = 98,695.20 : x
  2. Step 2: Convert to fraction form
    108,544.80/162,817.20 = 98,695.20/x
  3. Step 3: Cross multiply
    108,544.80x = 162,817.20 × 98,695.20
  4. Step 4: Simplify right side
    108,544.80x = 16,069,276,117.44
  5. Step 5: Solve for x
    x = 16,069,276,117.44/108,544.80
  6. Step 6: Final answer
    x = 148,042.80

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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.