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Finding the Fourth Proportional to 173,871.40, 260,709.90 and 74,014.60

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Solution

The fourth proportional to 173,871.40, 260,709.90 and 74,014.60 is: 110,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,871.40 : 260,709.90 = 74,014.60 : x
  2. Step 2: Convert to fraction form
    173,871.40/260,709.90 = 74,014.60/x
  3. Step 3: Cross multiply
    173,871.40x = 260,709.90 × 74,014.60
  4. Step 4: Simplify right side
    173,871.40x = 19,296,338,964.54
  5. Step 5: Solve for x
    x = 19,296,338,964.54/173,871.40
  6. Step 6: Final answer
    x = 110,980.52

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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.