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Finding the Fourth Proportional to 74,990.88, 112,527.83 and 44,931.24

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Solution

The fourth proportional to 74,990.88, 112,527.83 and 44,931.24 is: 67,421.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,990.88 : 112,527.83 = 44,931.24 : x
  2. Step 2: Convert to fraction form
    74,990.88/112,527.83 = 44,931.24/x
  3. Step 3: Cross multiply
    74,990.88x = 112,527.83 × 44,931.24
  4. Step 4: Simplify right side
    74,990.88x = 5,056,015,048.74
  5. Step 5: Solve for x
    x = 5,056,015,048.74/74,990.88
  6. Step 6: Final answer
    x = 67,421.73

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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.