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Finding the Fourth Proportional to 73,083.64, 100,855.92 and 42,886.84

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Solution

The fourth proportional to 73,083.64, 100,855.92 and 42,886.84 is: 59,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,083.64 : 100,855.92 = 42,886.84 : x
  2. Step 2: Convert to fraction form
    73,083.64/100,855.92 = 42,886.84/x
  3. Step 3: Cross multiply
    73,083.64x = 100,855.92 × 42,886.84
  4. Step 4: Simplify right side
    73,083.64x = 4,325,391,704.09
  5. Step 5: Solve for x
    x = 4,325,391,704.09/73,083.64
  6. Step 6: Final answer
    x = 59,184.13

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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.