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Finding the Fourth Proportional to 173,677.60, 260,516.40 and 85,104.10

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Solution

The fourth proportional to 173,677.60, 260,516.40 and 85,104.10 is: 127,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,677.60 : 260,516.40 = 85,104.10 : x
  2. Step 2: Convert to fraction form
    173,677.60/260,516.40 = 85,104.10/x
  3. Step 3: Cross multiply
    173,677.60x = 260,516.40 × 85,104.10
  4. Step 4: Simplify right side
    173,677.60x = 22,171,013,757.24
  5. Step 5: Solve for x
    x = 22,171,013,757.24/173,677.60
  6. Step 6: Final answer
    x = 127,656.15

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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.