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Finding the Fourth Proportional to 73,220.26, 109,704.98 and 39,963.64

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Solution

The fourth proportional to 73,220.26, 109,704.98 and 39,963.64 is: 59,877.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,220.26 : 109,704.98 = 39,963.64 : x
  2. Step 2: Convert to fraction form
    73,220.26/109,704.98 = 39,963.64/x
  3. Step 3: Cross multiply
    73,220.26x = 109,704.98 × 39,963.64
  4. Step 4: Simplify right side
    73,220.26x = 4,384,210,326.93
  5. Step 5: Solve for x
    x = 4,384,210,326.93/73,220.26
  6. Step 6: Final answer
    x = 59,877.01

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1.5x scale

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.