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Finding the Fourth Proportional to 173,462.60, 260,218.20 and 55,121.60

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Solution

The fourth proportional to 173,462.60, 260,218.20 and 55,121.60 is: 82,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,462.60 : 260,218.20 = 55,121.60 : x
  2. Step 2: Convert to fraction form
    173,462.60/260,218.20 = 55,121.60/x
  3. Step 3: Cross multiply
    173,462.60x = 260,218.20 × 55,121.60
  4. Step 4: Simplify right side
    173,462.60x = 14,343,643,533.12
  5. Step 5: Solve for x
    x = 14,343,643,533.12/173,462.60
  6. Step 6: Final answer
    x = 82,690.12

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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.