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Finding the Fourth Proportional to 74,704.98, 103,091.58 and 40,713.84

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Solution

The fourth proportional to 74,704.98, 103,091.58 and 40,713.84 is: 56,184.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704.98 : 103,091.58 = 40,713.84 : x
  2. Step 2: Convert to fraction form
    74,704.98/103,091.58 = 40,713.84/x
  3. Step 3: Cross multiply
    74,704.98x = 103,091.58 × 40,713.84
  4. Step 4: Simplify right side
    74,704.98x = 4,197,254,093.47
  5. Step 5: Solve for x
    x = 4,197,254,093.47/74,704.98
  6. Step 6: Final answer
    x = 56,184.39

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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.