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Finding the Fourth Proportional to 108,682.60, 163,023.90 and 61,443.40

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Solution

The fourth proportional to 108,682.60, 163,023.90 and 61,443.40 is: 92,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,682.60 : 163,023.90 = 61,443.40 : x
  2. Step 2: Convert to fraction form
    108,682.60/163,023.90 = 61,443.40/x
  3. Step 3: Cross multiply
    108,682.60x = 163,023.90 × 61,443.40
  4. Step 4: Simplify right side
    108,682.60x = 10,016,742,697.26
  5. Step 5: Solve for x
    x = 10,016,742,697.26/108,682.60
  6. Step 6: Final answer
    x = 92,165.10

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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.