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Finding the Fourth Proportional to 108,936.80, 163,405.20 and 59,040.80

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Solution

The fourth proportional to 108,936.80, 163,405.20 and 59,040.80 is: 88,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,936.80 : 163,405.20 = 59,040.80 : x
  2. Step 2: Convert to fraction form
    108,936.80/163,405.20 = 59,040.80/x
  3. Step 3: Cross multiply
    108,936.80x = 163,405.20 × 59,040.80
  4. Step 4: Simplify right side
    108,936.80x = 9,647,573,732.16
  5. Step 5: Solve for x
    x = 9,647,573,732.16/108,936.80
  6. Step 6: Final answer
    x = 88,561.20

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1.5x scale

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.