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Finding the Fourth Proportional to 115,874.90, 173,831.55 and 49,346.90

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Solution

The fourth proportional to 115,874.90, 173,831.55 and 49,346.90 is: 74,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,874.90 : 173,831.55 = 49,346.90 : x
  2. Step 2: Convert to fraction form
    115,874.90/173,831.55 = 49,346.90/x
  3. Step 3: Cross multiply
    115,874.90x = 173,831.55 × 49,346.90
  4. Step 4: Simplify right side
    115,874.90x = 8,578,048,114.70
  5. Step 5: Solve for x
    x = 8,578,048,114.70/115,874.90
  6. Step 6: Final answer
    x = 74,028.53

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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.