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Finding the Fourth Proportional to 108,252.80, 162,148.80 and 89,820.80

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Solution

The fourth proportional to 108,252.80, 162,148.80 and 89,820.80 is: 134,540.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,252.80 : 162,148.80 = 89,820.80 : x
  2. Step 2: Convert to fraction form
    108,252.80/162,148.80 = 89,820.80/x
  3. Step 3: Cross multiply
    108,252.80x = 162,148.80 × 89,820.80
  4. Step 4: Simplify right side
    108,252.80x = 14,564,334,935.04
  5. Step 5: Solve for x
    x = 14,564,334,935.04/108,252.80
  6. Step 6: Final answer
    x = 134,540.03

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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.