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Finding the Fourth Proportional to 173,628.80, 260,462.64 and 55,271.60

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Solution

The fourth proportional to 173,628.80, 260,462.64 and 55,271.60 is: 82,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,628.80 : 260,462.64 = 55,271.60 : x
  2. Step 2: Convert to fraction form
    173,628.80/260,462.64 = 55,271.60/x
  3. Step 3: Cross multiply
    173,628.80x = 260,462.64 × 55,271.60
  4. Step 4: Simplify right side
    173,628.80x = 14,396,186,853.02
  5. Step 5: Solve for x
    x = 14,396,186,853.02/173,628.80
  6. Step 6: Final answer
    x = 82,913.59

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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.