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Finding the Fourth Proportional to 173,978.55, 260,964.05 and 55,649.53

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Solution

The fourth proportional to 173,978.55, 260,964.05 and 55,649.53 is: 83,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,978.55 : 260,964.05 = 55,649.53 : x
  2. Step 2: Convert to fraction form
    173,978.55/260,964.05 = 55,649.53/x
  3. Step 3: Cross multiply
    173,978.55x = 260,964.05 × 55,649.53
  4. Step 4: Simplify right side
    173,978.55x = 14,522,526,777.35
  5. Step 5: Solve for x
    x = 14,522,526,777.35/173,978.55
  6. Step 6: Final answer
    x = 83,473.09

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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.