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Finding the Fourth Proportional to 173,887.70, 260,831.55 and 120,233.30

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Solution

The fourth proportional to 173,887.70, 260,831.55 and 120,233.30 is: 180,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,887.70 : 260,831.55 = 120,233.30 : x
  2. Step 2: Convert to fraction form
    173,887.70/260,831.55 = 120,233.30/x
  3. Step 3: Cross multiply
    173,887.70x = 260,831.55 × 120,233.30
  4. Step 4: Simplify right side
    173,887.70x = 31,360,638,000.62
  5. Step 5: Solve for x
    x = 31,360,638,000.62/173,887.70
  6. Step 6: Final answer
    x = 180,349.95

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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.