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Finding the Fourth Proportional to 173,678.60, 260,129.10 and 103,694.60

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Solution

The fourth proportional to 173,678.60, 260,129.10 and 103,694.60 is: 155,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,678.60 : 260,129.10 = 103,694.60 : x
  2. Step 2: Convert to fraction form
    173,678.60/260,129.10 = 103,694.60/x
  3. Step 3: Cross multiply
    173,678.60x = 260,129.10 × 103,694.60
  4. Step 4: Simplify right side
    173,678.60x = 26,973,982,972.86
  5. Step 5: Solve for x
    x = 26,973,982,972.86/173,678.60
  6. Step 6: Final answer
    x = 155,309.77

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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.