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Finding the Fourth Proportional to 74,215.56, 110,915.87 and 54,267.05

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Solution

The fourth proportional to 74,215.56, 110,915.87 and 54,267.05 is: 81,102.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,215.56 : 110,915.87 = 54,267.05 : x
  2. Step 2: Convert to fraction form
    74,215.56/110,915.87 = 54,267.05/x
  3. Step 3: Cross multiply
    74,215.56x = 110,915.87 × 54,267.05
  4. Step 4: Simplify right side
    74,215.56x = 6,019,077,063.08
  5. Step 5: Solve for x
    x = 6,019,077,063.08/74,215.56
  6. Step 6: Final answer
    x = 81,102.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.