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Finding the Fourth Proportional to 73,449.50, 101,360.31 and 39,915.50

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Solution

The fourth proportional to 73,449.50, 101,360.31 and 39,915.50 is: 55,083.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,449.50 : 101,360.31 = 39,915.50 : x
  2. Step 2: Convert to fraction form
    73,449.50/101,360.31 = 39,915.50/x
  3. Step 3: Cross multiply
    73,449.50x = 101,360.31 × 39,915.50
  4. Step 4: Simplify right side
    73,449.50x = 4,045,847,453.81
  5. Step 5: Solve for x
    x = 4,045,847,453.81/73,449.50
  6. Step 6: Final answer
    x = 55,083.39

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1.5x scale

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.