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Finding the Fourth Proportional to 73,874.68, 111,310.68 and 61,015.12

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Solution

The fourth proportional to 73,874.68, 111,310.68 and 61,015.12 is: 91,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,874.68 : 111,310.68 = 61,015.12 : x
  2. Step 2: Convert to fraction form
    73,874.68/111,310.68 = 61,015.12/x
  3. Step 3: Cross multiply
    73,874.68x = 111,310.68 × 61,015.12
  4. Step 4: Simplify right side
    73,874.68x = 6,791,634,497.48
  5. Step 5: Solve for x
    x = 6,791,634,497.48/73,874.68
  6. Step 6: Final answer
    x = 91,934.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.