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Finding the Fourth Proportional to 173,672.40, 260,484.30 and 55,355.70

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Solution

The fourth proportional to 173,672.40, 260,484.30 and 55,355.70 is: 83,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,672.40 : 260,484.30 = 55,355.70 : x
  2. Step 2: Convert to fraction form
    173,672.40/260,484.30 = 55,355.70/x
  3. Step 3: Cross multiply
    173,672.40x = 260,484.30 × 55,355.70
  4. Step 4: Simplify right side
    173,672.40x = 14,419,290,765.51
  5. Step 5: Solve for x
    x = 14,419,290,765.51/173,672.40
  6. Step 6: Final answer
    x = 83,025.80

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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.