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Finding the Fourth Proportional to 80,312.18, 110,831.01 and 44,501.90

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Solution

The fourth proportional to 80,312.18, 110,831.01 and 44,501.90 is: 61,412.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,312.18 : 110,831.01 = 44,501.90 : x
  2. Step 2: Convert to fraction form
    80,312.18/110,831.01 = 44,501.90/x
  3. Step 3: Cross multiply
    80,312.18x = 110,831.01 × 44,501.90
  4. Step 4: Simplify right side
    80,312.18x = 4,932,190,523.92
  5. Step 5: Solve for x
    x = 4,932,190,523.92/80,312.18
  6. Step 6: Final answer
    x = 61,412.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.