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Finding the Fourth Proportional to 74,871.90, 112,330.37 and 44,919.11

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Solution

The fourth proportional to 74,871.90, 112,330.37 and 44,919.11 is: 67,392.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,871.90 : 112,330.37 = 44,919.11 : x
  2. Step 2: Convert to fraction form
    74,871.90/112,330.37 = 44,919.11/x
  3. Step 3: Cross multiply
    74,871.90x = 112,330.37 × 44,919.11
  4. Step 4: Simplify right side
    74,871.90x = 5,045,780,639.49
  5. Step 5: Solve for x
    x = 5,045,780,639.49/74,871.90
  6. Step 6: Final answer
    x = 67,392.18

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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.