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Finding the Fourth Proportional to 173,601.60, 260,661.60 and 121,243.20

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Solution

The fourth proportional to 173,601.60, 260,661.60 and 121,243.20 is: 182,045.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,601.60 : 260,661.60 = 121,243.20 : x
  2. Step 2: Convert to fraction form
    173,601.60/260,661.60 = 121,243.20/x
  3. Step 3: Cross multiply
    173,601.60x = 260,661.60 × 121,243.20
  4. Step 4: Simplify right side
    173,601.60x = 31,603,446,501.12
  5. Step 5: Solve for x
    x = 31,603,446,501.12/173,601.60
  6. Step 6: Final answer
    x = 182,045.83

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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.