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Finding the Fourth Proportional to 173,442.60, 260,099.10 and 120,695.40

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Solution

The fourth proportional to 173,442.60, 260,099.10 and 120,695.40 is: 180,998.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,442.60 : 260,099.10 = 120,695.40 : x
  2. Step 2: Convert to fraction form
    173,442.60/260,099.10 = 120,695.40/x
  3. Step 3: Cross multiply
    173,442.60x = 260,099.10 × 120,695.40
  4. Step 4: Simplify right side
    173,442.60x = 31,392,764,914.14
  5. Step 5: Solve for x
    x = 31,392,764,914.14/173,442.60
  6. Step 6: Final answer
    x = 180,998.01

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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.