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Finding the Fourth Proportional to 173,757.40, 260,640.96 and 61,421.74

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Solution

The fourth proportional to 173,757.40, 260,640.96 and 61,421.74 is: 92,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,757.40 : 260,640.96 = 61,421.74 : x
  2. Step 2: Convert to fraction form
    173,757.40/260,640.96 = 61,421.74/x
  3. Step 3: Cross multiply
    173,757.40x = 260,640.96 × 61,421.74
  4. Step 4: Simplify right side
    173,757.40x = 16,009,021,278.47
  5. Step 5: Solve for x
    x = 16,009,021,278.47/173,757.40
  6. Step 6: Final answer
    x = 92,134.33

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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.